84480020

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{28349}}^1$

素因数の和:28507

約数の個数: 24

約数和(自身を含む): 178605000

約数和(自身を除く): 94124980

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 28349, 56698, 113396, 141745, 283490, 566980, 4224001, 8448002, 16896004, 21120005, 42240010, 84480020]

約数ペア:

[(1, 84480020), (2, 42240010), (4, 21120005), (5, 16896004), (10, 8448002), (20, 4224001), (149, 566980), (298, 283490), (596, 141745), (745, 113396), (1490, 56698), (2980, 28349)]