68679280

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2099}}^1$

素因数の和:2521

約数の個数: 40

約数和(自身を含む): 160146000

約数和(自身を除く): 91466720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 2099, 3272, 4090, 4198, 6544, 8180, 8396, 10495, 16360, 16792, 20990, 32720, 33584, 41980, 83960, 167920, 858491, 1716982, 3433964, 4292455, 6867928, 8584910, 13735856, 17169820, 34339640, 68679280]

約数ペア:

[(1, 68679280), (2, 34339640), (4, 17169820), (5, 13735856), (8, 8584910), (10, 6867928), (16, 4292455), (20, 3433964), (40, 1716982), (80, 858491), (409, 167920), (818, 83960), (1636, 41980), (2045, 33584), (2099, 32720), (3272, 20990), (4090, 16792), (4198, 16360), (6544, 10495), (8180, 8396)]