639343305

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{617723}}^1$

素因数の和:617757

約数の個数: 24

約数和(自身を含む): 1156379328

約数和(自身を除く): 517036023

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 617723, 1853169, 3088615, 5559507, 9265845, 14207629, 27797535, 42622887, 71038145, 127868661, 213114435, 639343305]

約数ペア:

[(1, 639343305), (3, 213114435), (5, 127868661), (9, 71038145), (15, 42622887), (23, 27797535), (45, 14207629), (69, 9265845), (115, 5559507), (207, 3088615), (345, 1853169), (1035, 617723)]