856540

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{379}}^1$

素因数の和:501

約数の個数: 24

約数和(自身を含む): 1819440

約数和(自身を除く): 962900

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 379, 452, 565, 758, 1130, 1516, 1895, 2260, 3790, 7580, 42827, 85654, 171308, 214135, 428270, 856540]

約数ペア:

[(1, 856540), (2, 428270), (4, 214135), (5, 171308), (10, 85654), (20, 42827), (113, 7580), (226, 3790), (379, 2260), (452, 1895), (565, 1516), (758, 1130)]