201250000

素因数分解:

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

素因数の和:73

約数の個数: 160

約数和(自身を含む): 581248512

約数和(自身を除く): 379998512

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 35, 40, 46, 50, 56, 70, 80, 92, 100, 112, 115, 125, 140, 161, 175, 184, 200, 230, 250, 280, 322, 350, 368, 400, 460, 500, 560, 575, 625, 644, 700, 805, 875, 920, 1000, 1150, 1250, 1288, 1400, 1610, 1750, 1840, 2000, 2300, 2500, 2576, 2800, 2875, 3125, 3220, 3500, 4025, 4375, 4600, 5000, 5750, 6250, 6440, 7000, 8050, 8750, 9200, 10000, 11500, 12500, 12880, 14000, 14375, 15625, 16100, 17500, 20125, 21875, 23000, 25000, 28750, 31250, 32200, 35000, 40250, 43750, 46000, 50000, 57500, 62500, 64400, 70000, 71875, 78125, 80500, 87500, 100625, 109375, 115000, 125000, 143750, 156250, 161000, 175000, 201250, 218750, 230000, 250000, 287500, 312500, 322000, 350000, 359375, 402500, 437500, 503125, 546875, 575000, 625000, 718750, 805000, 875000, 1006250, 1093750, 1150000, 1250000, 1437500, 1610000, 1750000, 1796875, 2012500, 2187500, 2515625, 2875000, 3593750, 4025000, 4375000, 5031250, 5750000, 7187500, 8050000, 8750000, 10062500, 12578125, 14375000, 20125000, 25156250, 28750000, 40250000, 50312500, 100625000, 201250000]

約数ペア:

[(1, 201250000), (2, 100625000), (4, 50312500), (5, 40250000), (7, 28750000), (8, 25156250), (10, 20125000), (14, 14375000), (16, 12578125), (20, 10062500), (23, 8750000), (25, 8050000), (28, 7187500), (35, 5750000), (40, 5031250), (46, 4375000), (50, 4025000), (56, 3593750), (70, 2875000), (80, 2515625), (92, 2187500), (100, 2012500), (112, 1796875), (115, 1750000), (125, 1610000), (140, 1437500), (161, 1250000), (175, 1150000), (184, 1093750), (200, 1006250), (230, 875000), (250, 805000), (280, 718750), (322, 625000), (350, 575000), (368, 546875), (400, 503125), (460, 437500), (500, 402500), (560, 359375), (575, 350000), (625, 322000), (644, 312500), (700, 287500), (805, 250000), (875, 230000), (920, 218750), (1000, 201250), (1150, 175000), (1250, 161000), (1288, 156250), (1400, 143750), (1610, 125000), (1750, 115000), (1840, 109375), (2000, 100625), (2300, 87500), (2500, 80500), (2576, 78125), (2800, 71875), (2875, 70000), (3125, 64400), (3220, 62500), (3500, 57500), (4025, 50000), (4375, 46000), (4600, 43750), (5000, 40250), (5750, 35000), (6250, 32200), (6440, 31250), (7000, 28750), (8050, 25000), (8750, 23000), (9200, 21875), (10000, 20125), (11500, 17500), (12500, 16100), (12880, 15625), (14000, 14375)]