997550

素因数分解:

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

素因数の和:364

約数の個数: 24

約数和(自身を含む): 1888272

約数和(自身を除く): 890722

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 281, 355, 562, 710, 1405, 1775, 2810, 3550, 7025, 14050, 19951, 39902, 99755, 199510, 498775, 997550]

約数ペア:

[(1, 997550), (2, 498775), (5, 199510), (10, 99755), (25, 39902), (50, 19951), (71, 14050), (142, 7025), (281, 3550), (355, 2810), (562, 1775), (710, 1405)]