12741980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{379}}^1$

素因数の和:470

約数の個数: 36

約数和(自身を含む): 27499080

約数和(自身を除く): 14757100

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 379, 410, 758, 820, 1516, 1681, 1895, 3362, 3790, 6724, 7580, 8405, 15539, 16810, 31078, 33620, 62156, 77695, 155390, 310780, 637099, 1274198, 2548396, 3185495, 6370990, 12741980]

約数ペア:

[(1, 12741980), (2, 6370990), (4, 3185495), (5, 2548396), (10, 1274198), (20, 637099), (41, 310780), (82, 155390), (164, 77695), (205, 62156), (379, 33620), (410, 31078), (758, 16810), (820, 15539), (1516, 8405), (1681, 7580), (1895, 6724), (3362, 3790)]