69047980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{38791}}^1$

素因数の和:38889

約数の個数: 24

約数和(自身を含む): 146633760

約数和(自身を除く): 77585780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 38791, 77582, 155164, 193955, 387910, 775820, 3452399, 6904798, 13809596, 17261995, 34523990, 69047980]

約数ペア:

[(1, 69047980), (2, 34523990), (4, 17261995), (5, 13809596), (10, 6904798), (20, 3452399), (89, 775820), (178, 387910), (356, 193955), (445, 155164), (890, 77582), (1780, 38791)]