80757640

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{11279}}^1$

素因数の和:11469

約数の個数: 32

約数和(自身を含む): 182736000

約数和(自身を除く): 101978360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 3580, 7160, 11279, 22558, 45116, 56395, 90232, 112790, 225580, 451160, 2018941, 4037882, 8075764, 10094705, 16151528, 20189410, 40378820, 80757640]

約数ペア:

[(1, 80757640), (2, 40378820), (4, 20189410), (5, 16151528), (8, 10094705), (10, 8075764), (20, 4037882), (40, 2018941), (179, 451160), (358, 225580), (716, 112790), (895, 90232), (1432, 56395), (1790, 45116), (3580, 22558), (7160, 11279)]