61750000

素因数分解:

$2^4\times 5^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:70

約数の個数: 140

約数和(自身を含む): 169529080

約数和(自身を除く): 107779080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 38, 40, 50, 52, 65, 76, 80, 95, 100, 104, 125, 130, 152, 190, 200, 208, 247, 250, 260, 304, 325, 380, 400, 475, 494, 500, 520, 625, 650, 760, 950, 988, 1000, 1040, 1235, 1250, 1300, 1520, 1625, 1900, 1976, 2000, 2375, 2470, 2500, 2600, 3125, 3250, 3800, 3952, 4750, 4940, 5000, 5200, 6175, 6250, 6500, 7600, 8125, 9500, 9880, 10000, 11875, 12350, 12500, 13000, 15625, 16250, 19000, 19760, 23750, 24700, 25000, 26000, 30875, 31250, 32500, 38000, 40625, 47500, 49400, 50000, 59375, 61750, 62500, 65000, 81250, 95000, 98800, 118750, 123500, 125000, 130000, 154375, 162500, 190000, 203125, 237500, 247000, 250000, 296875, 308750, 325000, 406250, 475000, 494000, 593750, 617500, 650000, 771875, 812500, 950000, 1187500, 1235000, 1543750, 1625000, 2375000, 2470000, 3087500, 3250000, 3859375, 4750000, 6175000, 7718750, 12350000, 15437500, 30875000, 61750000]

約数ペア:

[(1, 61750000), (2, 30875000), (4, 15437500), (5, 12350000), (8, 7718750), (10, 6175000), (13, 4750000), (16, 3859375), (19, 3250000), (20, 3087500), (25, 2470000), (26, 2375000), (38, 1625000), (40, 1543750), (50, 1235000), (52, 1187500), (65, 950000), (76, 812500), (80, 771875), (95, 650000), (100, 617500), (104, 593750), (125, 494000), (130, 475000), (152, 406250), (190, 325000), (200, 308750), (208, 296875), (247, 250000), (250, 247000), (260, 237500), (304, 203125), (325, 190000), (380, 162500), (400, 154375), (475, 130000), (494, 125000), (500, 123500), (520, 118750), (625, 98800), (650, 95000), (760, 81250), (950, 65000), (988, 62500), (1000, 61750), (1040, 59375), (1235, 50000), (1250, 49400), (1300, 47500), (1520, 40625), (1625, 38000), (1900, 32500), (1976, 31250), (2000, 30875), (2375, 26000), (2470, 25000), (2500, 24700), (2600, 23750), (3125, 19760), (3250, 19000), (3800, 16250), (3952, 15625), (4750, 13000), (4940, 12500), (5000, 12350), (5200, 11875), (6175, 10000), (6250, 9880), (6500, 9500), (7600, 8125)]