25646140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{98639}}^1$

素因数の和:98661

約数の個数: 24

約数和(自身を含む): 58000320

約数和(自身を除く): 32354180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 98639, 197278, 394556, 493195, 986390, 1282307, 1972780, 2564614, 5129228, 6411535, 12823070, 25646140]

約数ペア:

[(1, 25646140), (2, 12823070), (4, 6411535), (5, 5129228), (10, 2564614), (13, 1972780), (20, 1282307), (26, 986390), (52, 493195), (65, 394556), (130, 197278), (260, 98639)]