71319031880

素因数分解:

$2^3\times 5^1\times {\mathrm{6781}}^1\times {\mathrm{262937}}^1$

素因数の和:269729

約数の個数: 32

約数和(自身を含む): 160492096440

約数和(自身を除く): 89173064560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6781, 13562, 27124, 33905, 54248, 67810, 135620, 262937, 271240, 525874, 1051748, 1314685, 2103496, 2629370, 5258740, 10517480, 1782975797, 3565951594, 7131903188, 8914878985, 14263806376, 17829757970, 35659515940, 71319031880]

約数ペア:

[(1, 71319031880), (2, 35659515940), (4, 17829757970), (5, 14263806376), (8, 8914878985), (10, 7131903188), (20, 3565951594), (40, 1782975797), (6781, 10517480), (13562, 5258740), (27124, 2629370), (33905, 2103496), (54248, 1314685), (67810, 1051748), (135620, 525874), (262937, 271240)]