25621700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19709}}^1$

素因数の和:19736

約数の個数: 36

約数和(自身を含む): 59878980

約数和(自身を除く): 34257280

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 19709, 39418, 78836, 98545, 197090, 256217, 394180, 492725, 512434, 985450, 1024868, 1281085, 1970900, 2562170, 5124340, 6405425, 12810850, 25621700]

約数ペア:

[(1, 25621700), (2, 12810850), (4, 6405425), (5, 5124340), (10, 2562170), (13, 1970900), (20, 1281085), (25, 1024868), (26, 985450), (50, 512434), (52, 492725), (65, 394180), (100, 256217), (130, 197090), (260, 98545), (325, 78836), (650, 39418), (1300, 19709)]