81246160

素因数分解:

$2^4\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1237}}^1$

素因数の和:2071

約数の個数: 40

約数和(自身を含む): 189280296

約数和(自身を除く): 108034136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 821, 1237, 1642, 2474, 3284, 4105, 4948, 6185, 6568, 8210, 9896, 12370, 13136, 16420, 19792, 24740, 32840, 49480, 65680, 98960, 1015577, 2031154, 4062308, 5077885, 8124616, 10155770, 16249232, 20311540, 40623080, 81246160]

約数ペア:

[(1, 81246160), (2, 40623080), (4, 20311540), (5, 16249232), (8, 10155770), (10, 8124616), (16, 5077885), (20, 4062308), (40, 2031154), (80, 1015577), (821, 98960), (1237, 65680), (1642, 49480), (2474, 32840), (3284, 24740), (4105, 19792), (4948, 16420), (6185, 13136), (6568, 12370), (8210, 9896)]