1996880

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:351

約数の個数: 40

約数和(自身を含む): 4705800

約数和(自身を除く): 2708920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 229, 436, 458, 545, 872, 916, 1090, 1145, 1744, 1832, 2180, 2290, 3664, 4360, 4580, 8720, 9160, 18320, 24961, 49922, 99844, 124805, 199688, 249610, 399376, 499220, 998440, 1996880]

約数ペア:

[(1, 1996880), (2, 998440), (4, 499220), (5, 399376), (8, 249610), (10, 199688), (16, 124805), (20, 99844), (40, 49922), (80, 24961), (109, 18320), (218, 9160), (229, 8720), (436, 4580), (458, 4360), (545, 3664), (872, 2290), (916, 2180), (1090, 1832), (1145, 1744)]