20244872180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77864893}}^1$

素因数の和:77864915

約数の個数: 24

約数和(自身を含む): 45784557672

約数和(自身を除く): 25539685492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77864893, 155729786, 311459572, 389324465, 778648930, 1012243609, 1557297860, 2024487218, 4048974436, 5061218045, 10122436090, 20244872180]

約数ペア:

[(1, 20244872180), (2, 10122436090), (4, 5061218045), (5, 4048974436), (10, 2024487218), (13, 1557297860), (20, 1012243609), (26, 778648930), (52, 389324465), (65, 311459572), (130, 155729786), (260, 77864893)]