721870028

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{14767}}^1$

素因数の和:14894

約数の個数: 36

約数和(自身を含む): 1402398816

約数和(自身を除く): 680528788

約数列:

[1, 2, 4, 11, 22, 44, 101, 121, 202, 242, 404, 484, 1111, 2222, 4444, 12221, 14767, 24442, 29534, 48884, 59068, 162437, 324874, 649748, 1491467, 1786807, 2982934, 3573614, 5965868, 7147228, 16406137, 32812274, 65624548, 180467507, 360935014, 721870028]

約数ペア:

[(1, 721870028), (2, 360935014), (4, 180467507), (11, 65624548), (22, 32812274), (44, 16406137), (101, 7147228), (121, 5965868), (202, 3573614), (242, 2982934), (404, 1786807), (484, 1491467), (1111, 649748), (2222, 324874), (4444, 162437), (12221, 59068), (14767, 48884), (24442, 29534)]