89943160

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{2269}}^1$

素因数の和:3271

約数の個数: 32

約数和(自身を含む): 202665600

約数和(自身を除く): 112722440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1982, 2269, 3964, 4538, 4955, 7928, 9076, 9910, 11345, 18152, 19820, 22690, 39640, 45380, 90760, 2248579, 4497158, 8994316, 11242895, 17988632, 22485790, 44971580, 89943160]

約数ペア:

[(1, 89943160), (2, 44971580), (4, 22485790), (5, 17988632), (8, 11242895), (10, 8994316), (20, 4497158), (40, 2248579), (991, 90760), (1982, 45380), (2269, 39640), (3964, 22690), (4538, 19820), (4955, 18152), (7928, 11345), (9076, 9910)]