81994960

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{27701}}^1$

素因数の和:27751

約数の個数: 40

約数和(自身を含む): 195797736

約数和(自身を除く): 113802776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 27701, 55402, 110804, 138505, 221608, 277010, 443216, 554020, 1024937, 1108040, 2049874, 2216080, 4099748, 5124685, 8199496, 10249370, 16398992, 20498740, 40997480, 81994960]

約数ペア:

[(1, 81994960), (2, 40997480), (4, 20498740), (5, 16398992), (8, 10249370), (10, 8199496), (16, 5124685), (20, 4099748), (37, 2216080), (40, 2049874), (74, 1108040), (80, 1024937), (148, 554020), (185, 443216), (296, 277010), (370, 221608), (592, 138505), (740, 110804), (1480, 55402), (2960, 27701)]