261007025

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{1709}}^1$

素因数の和:1909

約数の個数: 24

約数和(自身を含む): 333963000

約数和(自身を除く): 72955975

約数列:

[1, 5, 25, 41, 149, 205, 745, 1025, 1709, 3725, 6109, 8545, 30545, 42725, 70069, 152725, 254641, 350345, 1273205, 1751725, 6366025, 10440281, 52201405, 261007025]

約数ペア:

[(1, 261007025), (5, 52201405), (25, 10440281), (41, 6366025), (149, 1751725), (205, 1273205), (745, 350345), (1025, 254641), (1709, 152725), (3725, 70069), (6109, 42725), (8545, 30545)]