18776980

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6301}}^1$

素因数の和:6459

約数の個数: 24

約数和(自身を含む): 39702600

約数和(自身を除く): 20925620

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6301, 12602, 25204, 31505, 63010, 126020, 938849, 1877698, 3755396, 4694245, 9388490, 18776980]

約数ペア:

[(1, 18776980), (2, 9388490), (4, 4694245), (5, 3755396), (10, 1877698), (20, 938849), (149, 126020), (298, 63010), (596, 31505), (745, 25204), (1490, 12602), (2980, 6301)]