401805220

素因数分解:

$2^2\times 5^1\times {\mathrm{4327}}^1\times {\mathrm{4643}}^1$

素因数の和:8979

約数の個数: 24

約数和(自身を含む): 844167744

約数和(自身を除く): 442362524

約数列:

[1, 2, 4, 5, 10, 20, 4327, 4643, 8654, 9286, 17308, 18572, 21635, 23215, 43270, 46430, 86540, 92860, 20090261, 40180522, 80361044, 100451305, 200902610, 401805220]

約数ペア:

[(1, 401805220), (2, 200902610), (4, 100451305), (5, 80361044), (10, 40180522), (20, 20090261), (4327, 92860), (4643, 86540), (8654, 46430), (9286, 43270), (17308, 23215), (18572, 21635)]