12636640

素因数分解:

$2^5\times 5^1\times {\mathrm{78979}}^1$

素因数の和:78994

約数の個数: 24

約数和(自身を含む): 29854440

約数和(自身を除く): 17217800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 78979, 157958, 315916, 394895, 631832, 789790, 1263664, 1579580, 2527328, 3159160, 6318320, 12636640]

約数ペア:

[(1, 12636640), (2, 6318320), (4, 3159160), (5, 2527328), (8, 1579580), (10, 1263664), (16, 789790), (20, 631832), (32, 394895), (40, 315916), (80, 157958), (160, 78979)]