65209640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{16141}}^1$

素因数の和:16253

約数の個数: 32

約数和(自身を含む): 148183560

約数和(自身を除く): 82973920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 16141, 32282, 64564, 80705, 129128, 161410, 322820, 645640, 1630241, 3260482, 6520964, 8151205, 13041928, 16302410, 32604820, 65209640]

約数ペア:

[(1, 65209640), (2, 32604820), (4, 16302410), (5, 13041928), (8, 8151205), (10, 6520964), (20, 3260482), (40, 1630241), (101, 645640), (202, 322820), (404, 161410), (505, 129128), (808, 80705), (1010, 64564), (2020, 32282), (4040, 16141)]