28027480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53899}}^1$

素因数の和:53923

約数の個数: 32

約数和(自身を含む): 67914000

約数和(自身を除く): 39886520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 53899, 107798, 215596, 269495, 431192, 538990, 700687, 1077980, 1401374, 2155960, 2802748, 3503435, 5605496, 7006870, 14013740, 28027480]

約数ペア:

[(1, 28027480), (2, 14013740), (4, 7006870), (5, 5605496), (8, 3503435), (10, 2802748), (13, 2155960), (20, 1401374), (26, 1077980), (40, 700687), (52, 538990), (65, 431192), (104, 269495), (130, 215596), (260, 107798), (520, 53899)]