12697940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{21893}}^1$

素因数の和:21931

約数の個数: 24

約数和(自身を含む): 27586440

約数和(自身を除く): 14888500

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 21893, 43786, 87572, 109465, 218930, 437860, 634897, 1269794, 2539588, 3174485, 6348970, 12697940]

約数ペア:

[(1, 12697940), (2, 6348970), (4, 3174485), (5, 2539588), (10, 1269794), (20, 634897), (29, 437860), (58, 218930), (116, 109465), (145, 87572), (290, 43786), (580, 21893)]