28156765

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3257}}^1$

素因数の和:3301

約数の個数: 32

約数和(自身を含む): 43787520

約数和(自身を除く): 15630755

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 455, 665, 1235, 1729, 3257, 8645, 16285, 22799, 42341, 61883, 113995, 211705, 296387, 309415, 433181, 804479, 1481935, 2165905, 4022395, 5631353, 28156765]

約数ペア:

[(1, 28156765), (5, 5631353), (7, 4022395), (13, 2165905), (19, 1481935), (35, 804479), (65, 433181), (91, 309415), (95, 296387), (133, 211705), (247, 113995), (455, 61883), (665, 42341), (1235, 22799), (1729, 16285), (3257, 8645)]