61980440

素因数分解:

$2^3\times 5^1\times {\mathrm{1549511}}^1$

素因数の和:1549522

約数の個数: 16

約数和(自身を含む): 139456080

約数和(自身を除く): 77475640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1549511, 3099022, 6198044, 7747555, 12396088, 15495110, 30990220, 61980440]

約数ペア:

[(1, 61980440), (2, 30990220), (4, 15495110), (5, 12396088), (8, 7747555), (10, 6198044), (20, 3099022), (40, 1549511)]