16565420

素因数分解:

$2^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{1531}}^1$

素因数の和:2081

約数の個数: 24

約数和(自身を含む): 34874448

約数和(自身を除く): 18309028

約数列:

[1, 2, 4, 5, 10, 20, 541, 1082, 1531, 2164, 2705, 3062, 5410, 6124, 7655, 10820, 15310, 30620, 828271, 1656542, 3313084, 4141355, 8282710, 16565420]

約数ペア:

[(1, 16565420), (2, 8282710), (4, 4141355), (5, 3313084), (10, 1656542), (20, 828271), (541, 30620), (1082, 15310), (1531, 10820), (2164, 7655), (2705, 6124), (3062, 5410)]