8218960

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1447}}^1$

素因数の和:1531

約数の個数: 40

約数和(自身を含む): 19391616

約数和(自身を除く): 11172656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 1447, 2840, 2894, 5680, 5788, 7235, 11576, 14470, 23152, 28940, 57880, 102737, 115760, 205474, 410948, 513685, 821896, 1027370, 1643792, 2054740, 4109480, 8218960]

約数ペア:

[(1, 8218960), (2, 4109480), (4, 2054740), (5, 1643792), (8, 1027370), (10, 821896), (16, 513685), (20, 410948), (40, 205474), (71, 115760), (80, 102737), (142, 57880), (284, 28940), (355, 23152), (568, 14470), (710, 11576), (1136, 7235), (1420, 5788), (1447, 5680), (2840, 2894)]