1656687740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{157181}}^1$

素因数の和:157238

約数の個数: 48

約数和(自身を含む): 3802546944

約数和(自身を除く): 2145859204

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 155, 170, 310, 340, 527, 620, 1054, 2108, 2635, 5270, 10540, 157181, 314362, 628724, 785905, 1571810, 2672077, 3143620, 4872611, 5344154, 9745222, 10688308, 13360385, 19490444, 24363055, 26720770, 48726110, 53441540, 82834387, 97452220, 165668774, 331337548, 414171935, 828343870, 1656687740]

約数ペア:

[(1, 1656687740), (2, 828343870), (4, 414171935), (5, 331337548), (10, 165668774), (17, 97452220), (20, 82834387), (31, 53441540), (34, 48726110), (62, 26720770), (68, 24363055), (85, 19490444), (124, 13360385), (155, 10688308), (170, 9745222), (310, 5344154), (340, 4872611), (527, 3143620), (620, 2672077), (1054, 1571810), (2108, 785905), (2635, 628724), (5270, 314362), (10540, 157181)]