7785140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3217}}^1$

素因数の和:3248

約数の個数: 36

約数和(自身を含む): 17975748

約数和(自身を除く): 10190608

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 3217, 6434, 12868, 16085, 32170, 35387, 64340, 70774, 141548, 176935, 353870, 389257, 707740, 778514, 1557028, 1946285, 3892570, 7785140]

約数ペア:

[(1, 7785140), (2, 3892570), (4, 1946285), (5, 1557028), (10, 778514), (11, 707740), (20, 389257), (22, 353870), (44, 176935), (55, 141548), (110, 70774), (121, 64340), (220, 35387), (242, 32170), (484, 16085), (605, 12868), (1210, 6434), (2420, 3217)]