85581040

素因数分解:

$2^4\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1303}}^1$

素因数の和:2137

約数の個数: 40

約数和(自身を含む): 199371168

約数和(自身を除く): 113790128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 821, 1303, 1642, 2606, 3284, 4105, 5212, 6515, 6568, 8210, 10424, 13030, 13136, 16420, 20848, 26060, 32840, 52120, 65680, 104240, 1069763, 2139526, 4279052, 5348815, 8558104, 10697630, 17116208, 21395260, 42790520, 85581040]

約数ペア:

[(1, 85581040), (2, 42790520), (4, 21395260), (5, 17116208), (8, 10697630), (10, 8558104), (16, 5348815), (20, 4279052), (40, 2139526), (80, 1069763), (821, 104240), (1303, 65680), (1642, 52120), (2606, 32840), (3284, 26060), (4105, 20848), (5212, 16420), (6515, 13136), (6568, 13030), (8210, 10424)]