39902000

素因数分解:

$2^4\times 5^3\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:375

約数の個数: 80

約数和(自身を含む): 98190144

約数和(自身を除く): 58288144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 100, 125, 142, 200, 250, 281, 284, 355, 400, 500, 562, 568, 710, 1000, 1124, 1136, 1405, 1420, 1775, 2000, 2248, 2810, 2840, 3550, 4496, 5620, 5680, 7025, 7100, 8875, 11240, 14050, 14200, 17750, 19951, 22480, 28100, 28400, 35125, 35500, 39902, 56200, 70250, 71000, 79804, 99755, 112400, 140500, 142000, 159608, 199510, 281000, 319216, 399020, 498775, 562000, 798040, 997550, 1596080, 1995100, 2493875, 3990200, 4987750, 7980400, 9975500, 19951000, 39902000]

約数ペア:

[(1, 39902000), (2, 19951000), (4, 9975500), (5, 7980400), (8, 4987750), (10, 3990200), (16, 2493875), (20, 1995100), (25, 1596080), (40, 997550), (50, 798040), (71, 562000), (80, 498775), (100, 399020), (125, 319216), (142, 281000), (200, 199510), (250, 159608), (281, 142000), (284, 140500), (355, 112400), (400, 99755), (500, 79804), (562, 71000), (568, 70250), (710, 56200), (1000, 39902), (1124, 35500), (1136, 35125), (1405, 28400), (1420, 28100), (1775, 22480), (2000, 19951), (2248, 17750), (2810, 14200), (2840, 14050), (3550, 11240), (4496, 8875), (5620, 7100), (5680, 7025)]