20525128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1307}}^1$

素因数の和:1477

約数の個数: 32

約数和(自身を含む): 41751360

約数和(自身を除く): 21226232

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 151, 302, 604, 1208, 1307, 1963, 2614, 3926, 5228, 7852, 10456, 15704, 16991, 33982, 67964, 135928, 197357, 394714, 789428, 1578856, 2565641, 5131282, 10262564, 20525128]

約数ペア:

[(1, 20525128), (2, 10262564), (4, 5131282), (8, 2565641), (13, 1578856), (26, 789428), (52, 394714), (104, 197357), (151, 135928), (302, 67964), (604, 33982), (1208, 16991), (1307, 15704), (1963, 10456), (2614, 7852), (3926, 5228)]