256415470

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{195737}}^1$

素因数の和:195875

約数の個数: 16

約数和(自身を含む): 465073488

約数和(自身を除く): 208658018

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 195737, 391474, 978685, 1957370, 25641547, 51283094, 128207735, 256415470]

約数ペア:

[(1, 256415470), (2, 128207735), (5, 51283094), (10, 25641547), (131, 1957370), (262, 978685), (655, 391474), (1310, 195737)]