668880580

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{2417}}^1$

素因数の和:2664

約数の個数: 48

約数和(自身を含む): 1429502256

約数和(自身を除く): 760621676

約数列:

[1, 2, 4, 5, 10, 20, 101, 137, 202, 274, 404, 505, 548, 685, 1010, 1370, 2020, 2417, 2740, 4834, 9668, 12085, 13837, 24170, 27674, 48340, 55348, 69185, 138370, 244117, 276740, 331129, 488234, 662258, 976468, 1220585, 1324516, 1655645, 2441170, 3311290, 4882340, 6622580, 33444029, 66888058, 133776116, 167220145, 334440290, 668880580]

約数ペア:

[(1, 668880580), (2, 334440290), (4, 167220145), (5, 133776116), (10, 66888058), (20, 33444029), (101, 6622580), (137, 4882340), (202, 3311290), (274, 2441170), (404, 1655645), (505, 1324516), (548, 1220585), (685, 976468), (1010, 662258), (1370, 488234), (2020, 331129), (2417, 276740), (2740, 244117), (4834, 138370), (9668, 69185), (12085, 55348), (13837, 48340), (24170, 27674)]