140995240

素因数分解:

$2^3\times 5^1\times {\mathrm{881}}^1\times {\mathrm{4001}}^1$

素因数の和:4893

約数の個数: 32

約数和(自身を含む): 317678760

約数和(自身を除く): 176683520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 881, 1762, 3524, 4001, 4405, 7048, 8002, 8810, 16004, 17620, 20005, 32008, 35240, 40010, 80020, 160040, 3524881, 7049762, 14099524, 17624405, 28199048, 35248810, 70497620, 140995240]

約数ペア:

[(1, 140995240), (2, 70497620), (4, 35248810), (5, 28199048), (8, 17624405), (10, 14099524), (20, 7049762), (40, 3524881), (881, 160040), (1762, 80020), (3524, 40010), (4001, 35240), (4405, 32008), (7048, 20005), (8002, 17620), (8810, 16004)]