81294680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{119551}}^1$

素因数の和:119579

約数の個数: 32

約数和(自身を含む): 193674240

約数和(自身を除く): 112379560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 119551, 239102, 478204, 597755, 956408, 1195510, 2032367, 2391020, 4064734, 4782040, 8129468, 10161835, 16258936, 20323670, 40647340, 81294680]

約数ペア:

[(1, 81294680), (2, 40647340), (4, 20323670), (5, 16258936), (8, 10161835), (10, 8129468), (17, 4782040), (20, 4064734), (34, 2391020), (40, 2032367), (68, 1195510), (85, 956408), (136, 597755), (170, 478204), (340, 239102), (680, 119551)]