12386980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{19979}}^1$

素因数の和:20019

約数の個数: 24

約数和(自身を含む): 26853120

約数和(自身を除く): 14466140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 19979, 39958, 79916, 99895, 199790, 399580, 619349, 1238698, 2477396, 3096745, 6193490, 12386980]

約数ペア:

[(1, 12386980), (2, 6193490), (4, 3096745), (5, 2477396), (10, 1238698), (20, 619349), (31, 399580), (62, 199790), (124, 99895), (155, 79916), (310, 39958), (620, 19979)]