20211250000

素因数分解:

$2^4\times 5^7\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:122

約数の個数: 320

約数和(自身を含む): 55218608640

約数和(自身を除く): 35007358640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 25, 37, 38, 40, 46, 50, 74, 76, 80, 92, 95, 100, 115, 125, 148, 152, 184, 185, 190, 200, 230, 250, 296, 304, 368, 370, 380, 400, 437, 460, 475, 500, 575, 592, 625, 703, 740, 760, 851, 874, 920, 925, 950, 1000, 1150, 1250, 1406, 1480, 1520, 1702, 1748, 1840, 1850, 1900, 2000, 2185, 2300, 2375, 2500, 2812, 2875, 2960, 3125, 3404, 3496, 3515, 3700, 3800, 4255, 4370, 4600, 4625, 4750, 5000, 5624, 5750, 6250, 6808, 6992, 7030, 7400, 7600, 8510, 8740, 9200, 9250, 9500, 10000, 10925, 11248, 11500, 11875, 12500, 13616, 14060, 14375, 14800, 15625, 16169, 17020, 17480, 17575, 18500, 19000, 21275, 21850, 23000, 23125, 23750, 25000, 28120, 28750, 31250, 32338, 34040, 34960, 35150, 37000, 38000, 42550, 43700, 46000, 46250, 47500, 50000, 54625, 56240, 57500, 59375, 62500, 64676, 68080, 70300, 71875, 74000, 78125, 80845, 85100, 87400, 87875, 92500, 95000, 106375, 109250, 115000, 115625, 118750, 125000, 129352, 140600, 143750, 156250, 161690, 170200, 174800, 175750, 185000, 190000, 212750, 218500, 230000, 231250, 237500, 250000, 258704, 273125, 281200, 287500, 296875, 312500, 323380, 340400, 351500, 359375, 370000, 404225, 425500, 437000, 439375, 462500, 475000, 531875, 546250, 575000, 578125, 593750, 625000, 646760, 703000, 718750, 808450, 851000, 874000, 878750, 925000, 950000, 1063750, 1092500, 1150000, 1156250, 1187500, 1250000, 1293520, 1365625, 1406000, 1437500, 1484375, 1616900, 1702000, 1757500, 1796875, 1850000, 2021125, 2127500, 2185000, 2196875, 2312500, 2375000, 2659375, 2731250, 2875000, 2890625, 2968750, 3233800, 3515000, 3593750, 4042250, 4255000, 4370000, 4393750, 4625000, 4750000, 5318750, 5462500, 5750000, 5781250, 5937500, 6467600, 6828125, 7030000, 7187500, 8084500, 8510000, 8787500, 9250000, 10105625, 10637500, 10925000, 10984375, 11562500, 11875000, 13296875, 13656250, 14375000, 16169000, 17575000, 20211250, 21275000, 21850000, 21968750, 23125000, 23750000, 26593750, 27312500, 28750000, 32338000, 34140625, 35150000, 40422500, 42550000, 43937500, 46250000, 50528125, 53187500, 54625000, 54921875, 66484375, 68281250, 80845000, 87875000, 101056250, 106375000, 109250000, 109843750, 132968750, 136562500, 161690000, 175750000, 202112500, 212750000, 219687500, 252640625, 265937500, 273125000, 404225000, 439375000, 505281250, 531875000, 546250000, 808450000, 878750000, 1010562500, 1063750000, 1263203125, 2021125000, 2526406250, 4042250000, 5052812500, 10105625000, 20211250000]

約数ペア:

[(1, 20211250000), (2, 10105625000), (4, 5052812500), (5, 4042250000), (8, 2526406250), (10, 2021125000), (16, 1263203125), (19, 1063750000), (20, 1010562500), (23, 878750000), (25, 808450000), (37, 546250000), (38, 531875000), (40, 505281250), (46, 439375000), (50, 404225000), (74, 273125000), (76, 265937500), (80, 252640625), (92, 219687500), (95, 212750000), (100, 202112500), (115, 175750000), (125, 161690000), (148, 136562500), (152, 132968750), (184, 109843750), (185, 109250000), (190, 106375000), (200, 101056250), (230, 87875000), (250, 80845000), (296, 68281250), (304, 66484375), (368, 54921875), (370, 54625000), (380, 53187500), (400, 50528125), (437, 46250000), (460, 43937500), (475, 42550000), (500, 40422500), (575, 35150000), (592, 34140625), (625, 32338000), (703, 28750000), (740, 27312500), (760, 26593750), (851, 23750000), (874, 23125000), (920, 21968750), (925, 21850000), (950, 21275000), (1000, 20211250), (1150, 17575000), (1250, 16169000), (1406, 14375000), (1480, 13656250), (1520, 13296875), (1702, 11875000), (1748, 11562500), (1840, 10984375), (1850, 10925000), (1900, 10637500), (2000, 10105625), (2185, 9250000), (2300, 8787500), (2375, 8510000), (2500, 8084500), (2812, 7187500), (2875, 7030000), (2960, 6828125), (3125, 6467600), (3404, 5937500), (3496, 5781250), (3515, 5750000), (3700, 5462500), (3800, 5318750), (4255, 4750000), (4370, 4625000), (4600, 4393750), (4625, 4370000), (4750, 4255000), (5000, 4042250), (5624, 3593750), (5750, 3515000), (6250, 3233800), (6808, 2968750), (6992, 2890625), (7030, 2875000), (7400, 2731250), (7600, 2659375), (8510, 2375000), (8740, 2312500), (9200, 2196875), (9250, 2185000), (9500, 2127500), (10000, 2021125), (10925, 1850000), (11248, 1796875), (11500, 1757500), (11875, 1702000), (12500, 1616900), (13616, 1484375), (14060, 1437500), (14375, 1406000), (14800, 1365625), (15625, 1293520), (16169, 1250000), (17020, 1187500), (17480, 1156250), (17575, 1150000), (18500, 1092500), (19000, 1063750), (21275, 950000), (21850, 925000), (23000, 878750), (23125, 874000), (23750, 851000), (25000, 808450), (28120, 718750), (28750, 703000), (31250, 646760), (32338, 625000), (34040, 593750), (34960, 578125), (35150, 575000), (37000, 546250), (38000, 531875), (42550, 475000), (43700, 462500), (46000, 439375), (46250, 437000), (47500, 425500), (50000, 404225), (54625, 370000), (56240, 359375), (57500, 351500), (59375, 340400), (62500, 323380), (64676, 312500), (68080, 296875), (70300, 287500), (71875, 281200), (74000, 273125), (78125, 258704), (80845, 250000), (85100, 237500), (87400, 231250), (87875, 230000), (92500, 218500), (95000, 212750), (106375, 190000), (109250, 185000), (115000, 175750), (115625, 174800), (118750, 170200), (125000, 161690), (129352, 156250), (140600, 143750)]