281426960

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{49547}}^1$

素因数の和:49631

約数の個数: 40

約数和(自身を含む): 663546816

約数和(自身を除く): 382119856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 49547, 99094, 198188, 247735, 396376, 495470, 792752, 990940, 1981880, 3517837, 3963760, 7035674, 14071348, 17589185, 28142696, 35178370, 56285392, 70356740, 140713480, 281426960]

約数ペア:

[(1, 281426960), (2, 140713480), (4, 70356740), (5, 56285392), (8, 35178370), (10, 28142696), (16, 17589185), (20, 14071348), (40, 7035674), (71, 3963760), (80, 3517837), (142, 1981880), (284, 990940), (355, 792752), (568, 495470), (710, 396376), (1136, 247735), (1420, 198188), (2840, 99094), (5680, 49547)]