69680360

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{3491}}^1$

素因数の和:4001

約数の個数: 32

約数和(自身を含む): 157140000

約数和(自身を除く): 87459640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2495, 3491, 3992, 4990, 6982, 9980, 13964, 17455, 19960, 27928, 34910, 69820, 139640, 1742009, 3484018, 6968036, 8710045, 13936072, 17420090, 34840180, 69680360]

約数ペア:

[(1, 69680360), (2, 34840180), (4, 17420090), (5, 13936072), (8, 8710045), (10, 6968036), (20, 3484018), (40, 1742009), (499, 139640), (998, 69820), (1996, 34910), (2495, 27928), (3491, 19960), (3992, 17455), (4990, 13964), (6982, 9980)]