278530850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{428509}}^1$

素因数の和:428534

約数の個数: 24

約数和(自身を含む): 557920020

約数和(自身を除く): 279389170

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 428509, 857018, 2142545, 4285090, 5570617, 10712725, 11141234, 21425450, 27853085, 55706170, 139265425, 278530850]

約数ペア:

[(1, 278530850), (2, 139265425), (5, 55706170), (10, 27853085), (13, 21425450), (25, 11141234), (26, 10712725), (50, 5570617), (65, 4285090), (130, 2142545), (325, 857018), (650, 428509)]