20161949275

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{19}}^2\times {\mathrm{13219}}^1$

素因数の和:13293

約数の個数: 54

約数和(自身を含む): 28573879860

約数和(自身を除く): 8411930585

約数列:

[1, 5, 13, 19, 25, 65, 95, 169, 247, 325, 361, 475, 845, 1235, 1805, 3211, 4225, 4693, 6175, 9025, 13219, 16055, 23465, 61009, 66095, 80275, 117325, 171847, 251161, 305045, 330475, 859235, 1255805, 1525225, 2234011, 3265093, 4296175, 4772059, 6279025, 11170055, 16325465, 23860295, 42446209, 55850275, 62036767, 81627325, 119301475, 212231045, 310183835, 806477971, 1061155225, 1550919175, 4032389855, 20161949275]

約数ペア:

[(1, 20161949275), (5, 4032389855), (13, 1550919175), (19, 1061155225), (25, 806477971), (65, 310183835), (95, 212231045), (169, 119301475), (247, 81627325), (325, 62036767), (361, 55850275), (475, 42446209), (845, 23860295), (1235, 16325465), (1805, 11170055), (3211, 6279025), (4225, 4772059), (4693, 4296175), (6175, 3265093), (9025, 2234011), (13219, 1525225), (16055, 1255805), (23465, 859235), (61009, 330475), (66095, 305045), (80275, 251161), (117325, 171847)]