28590575

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:204

約数の個数: 36

約数和(自身を含む): 39347928

約数和(自身を除く): 10757353

約数列:

[1, 5, 13, 25, 65, 67, 101, 169, 325, 335, 505, 845, 871, 1313, 1675, 2525, 4225, 4355, 6565, 6767, 11323, 17069, 21775, 32825, 33835, 56615, 85345, 87971, 169175, 283075, 426725, 439855, 1143623, 2199275, 5718115, 28590575]

約数ペア:

[(1, 28590575), (5, 5718115), (13, 2199275), (25, 1143623), (65, 439855), (67, 426725), (101, 283075), (169, 169175), (325, 87971), (335, 85345), (505, 56615), (845, 33835), (871, 32825), (1313, 21775), (1675, 17069), (2525, 11323), (4225, 6767), (4355, 6565)]