15985420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{72661}}^1$

素因数の和:72681

約数の個数: 24

約数和(自身を含む): 36621648

約数和(自身を除く): 20636228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 72661, 145322, 290644, 363305, 726610, 799271, 1453220, 1598542, 3197084, 3996355, 7992710, 15985420]

約数ペア:

[(1, 15985420), (2, 7992710), (4, 3996355), (5, 3197084), (10, 1598542), (11, 1453220), (20, 799271), (22, 726610), (44, 363305), (55, 290644), (110, 145322), (220, 72661)]