218485730

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{166783}}^1$

素因数の和:166921

約数の個数: 16

約数和(自身を含む): 396278784

約数和(自身を除く): 177793054

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 166783, 333566, 833915, 1667830, 21848573, 43697146, 109242865, 218485730]

約数ペア:

[(1, 218485730), (2, 109242865), (5, 43697146), (10, 21848573), (131, 1667830), (262, 833915), (655, 333566), (1310, 166783)]