677461640

素因数分解:

$2^3\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{12821}}^1$

素因数の和:14153

約数の個数: 32

約数和(自身を含む): 1525561560

約数和(自身を除く): 848099920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1321, 2642, 5284, 6605, 10568, 12821, 13210, 25642, 26420, 51284, 52840, 64105, 102568, 128210, 256420, 512840, 16936541, 33873082, 67746164, 84682705, 135492328, 169365410, 338730820, 677461640]

約数ペア:

[(1, 677461640), (2, 338730820), (4, 169365410), (5, 135492328), (8, 84682705), (10, 67746164), (20, 33873082), (40, 16936541), (1321, 512840), (2642, 256420), (5284, 128210), (6605, 102568), (10568, 64105), (12821, 52840), (13210, 51284), (25642, 26420)]