25516810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{421}}^1$

素因数の和:487

約数の個数: 64

約数和(自身を含む): 54691200

約数和(自身を除く): 29174390

約数列:

[1, 2, 5, 10, 11, 19, 22, 29, 38, 55, 58, 95, 110, 145, 190, 209, 290, 319, 418, 421, 551, 638, 842, 1045, 1102, 1595, 2090, 2105, 2755, 3190, 4210, 4631, 5510, 6061, 7999, 9262, 12122, 12209, 15998, 23155, 24418, 30305, 39995, 46310, 60610, 61045, 79990, 87989, 122090, 134299, 175978, 231971, 268598, 439945, 463942, 671495, 879890, 1159855, 1342990, 2319710, 2551681, 5103362, 12758405, 25516810]

約数ペア:

[(1, 25516810), (2, 12758405), (5, 5103362), (10, 2551681), (11, 2319710), (19, 1342990), (22, 1159855), (29, 879890), (38, 671495), (55, 463942), (58, 439945), (95, 268598), (110, 231971), (145, 175978), (190, 134299), (209, 122090), (290, 87989), (319, 79990), (418, 61045), (421, 60610), (551, 46310), (638, 39995), (842, 30305), (1045, 24418), (1102, 23155), (1595, 15998), (2090, 12209), (2105, 12122), (2755, 9262), (3190, 7999), (4210, 6061), (4631, 5510)]