64289080

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22637}}^1$

素因数の和:22719

約数の個数: 32

約数和(自身を含む): 146694240

約数和(自身を除く): 82405160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 22637, 45274, 90548, 113185, 181096, 226370, 452740, 905480, 1607227, 3214454, 6428908, 8036135, 12857816, 16072270, 32144540, 64289080]

約数ペア:

[(1, 64289080), (2, 32144540), (4, 16072270), (5, 12857816), (8, 8036135), (10, 6428908), (20, 3214454), (40, 1607227), (71, 905480), (142, 452740), (284, 226370), (355, 181096), (568, 113185), (710, 90548), (1420, 45274), (2840, 22637)]