79738640

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2437}}^1$

素因数の和:2859

約数の個数: 40

約数和(自身を含む): 185921880

約数和(自身を除く): 106183240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 2437, 3272, 4090, 4874, 6544, 8180, 9748, 12185, 16360, 19496, 24370, 32720, 38992, 48740, 97480, 194960, 996733, 1993466, 3986932, 4983665, 7973864, 9967330, 15947728, 19934660, 39869320, 79738640]

約数ペア:

[(1, 79738640), (2, 39869320), (4, 19934660), (5, 15947728), (8, 9967330), (10, 7973864), (16, 4983665), (20, 3986932), (40, 1993466), (80, 996733), (409, 194960), (818, 97480), (1636, 48740), (2045, 38992), (2437, 32720), (3272, 24370), (4090, 19496), (4874, 16360), (6544, 12185), (8180, 9748)]