20819630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8429}}^1$

素因数の和:8468

約数の個数: 32

約数和(自身を含む): 42487200

約数和(自身を除く): 21667570

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8429, 16858, 42145, 84290, 109577, 160151, 219154, 320302, 547885, 800755, 1095770, 1601510, 2081963, 4163926, 10409815, 20819630]

約数ペア:

[(1, 20819630), (2, 10409815), (5, 4163926), (10, 2081963), (13, 1601510), (19, 1095770), (26, 800755), (38, 547885), (65, 320302), (95, 219154), (130, 160151), (190, 109577), (247, 84290), (494, 42145), (1235, 16858), (2470, 8429)]