8420560

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1571}}^1$

素因数の和:1651

約数の個数: 40

約数和(自身を含む): 19882656

約数和(自身を除く): 11462096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 1571, 2680, 3142, 5360, 6284, 7855, 12568, 15710, 25136, 31420, 62840, 105257, 125680, 210514, 421028, 526285, 842056, 1052570, 1684112, 2105140, 4210280, 8420560]

約数ペア:

[(1, 8420560), (2, 4210280), (4, 2105140), (5, 1684112), (8, 1052570), (10, 842056), (16, 526285), (20, 421028), (40, 210514), (67, 125680), (80, 105257), (134, 62840), (268, 31420), (335, 25136), (536, 15710), (670, 12568), (1072, 7855), (1340, 6284), (1571, 5360), (2680, 3142)]