2018628880

素因数分解:

$2^4\times 5^1\times {\mathrm{25232861}}^1$

素因数の和:25232874

約数の個数: 20

約数和(自身を含む): 4693312332

約数和(自身を除く): 2674683452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25232861, 50465722, 100931444, 126164305, 201862888, 252328610, 403725776, 504657220, 1009314440, 2018628880]

約数ペア:

[(1, 2018628880), (2, 1009314440), (4, 504657220), (5, 403725776), (8, 252328610), (10, 201862888), (16, 126164305), (20, 100931444), (40, 50465722), (80, 25232861)]