7988420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3301}}^1$

素因数の和:3332

約数の個数: 36

約数和(自身を含む): 18444972

約数和(自身を除く): 10456552

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 3301, 6602, 13204, 16505, 33010, 36311, 66020, 72622, 145244, 181555, 363110, 399421, 726220, 798842, 1597684, 1997105, 3994210, 7988420]

約数ペア:

[(1, 7988420), (2, 3994210), (4, 1997105), (5, 1597684), (10, 798842), (11, 726220), (20, 399421), (22, 363110), (44, 181555), (55, 145244), (110, 72622), (121, 66020), (220, 36311), (242, 33010), (484, 16505), (605, 13204), (1210, 6602), (2420, 3301)]