20531625985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{173651}}^1$

素因数の和:173793

約数の個数: 32

約数和(自身を含む): 28356676992

約数和(自身を除く): 7825051007

約数列:

[1, 5, 13, 17, 65, 85, 107, 221, 535, 1105, 1391, 1819, 6955, 9095, 23647, 118235, 173651, 868255, 2257463, 2952067, 11287315, 14760335, 18580657, 38376871, 92903285, 191884355, 241548541, 315871169, 1207742705, 1579355845, 4106325197, 20531625985]

約数ペア:

[(1, 20531625985), (5, 4106325197), (13, 1579355845), (17, 1207742705), (65, 315871169), (85, 241548541), (107, 191884355), (221, 92903285), (535, 38376871), (1105, 18580657), (1391, 14760335), (1819, 11287315), (6955, 2952067), (9095, 2257463), (23647, 868255), (118235, 173651)]