680334640

素因数分解:

$2^4\times 5^1\times {\mathrm{8504183}}^1$

素因数の和:8504196

約数の個数: 20

約数和(自身を含む): 1581778224

約数和(自身を除く): 901443584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 8504183, 17008366, 34016732, 42520915, 68033464, 85041830, 136066928, 170083660, 340167320, 680334640]

約数ペア:

[(1, 680334640), (2, 340167320), (4, 170083660), (5, 136066928), (8, 85041830), (10, 68033464), (16, 42520915), (20, 34016732), (40, 17008366), (80, 8504183)]