61136440

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2377}}^1$

素因数の和:3031

約数の個数: 32

約数和(自身を含む): 137828880

約数和(自身を除く): 76692440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2377, 2572, 3215, 4754, 5144, 6430, 9508, 11885, 12860, 19016, 23770, 25720, 47540, 95080, 1528411, 3056822, 6113644, 7642055, 12227288, 15284110, 30568220, 61136440]

約数ペア:

[(1, 61136440), (2, 30568220), (4, 15284110), (5, 12227288), (8, 7642055), (10, 6113644), (20, 3056822), (40, 1528411), (643, 95080), (1286, 47540), (2377, 25720), (2572, 23770), (3215, 19016), (4754, 12860), (5144, 11885), (6430, 9508)]