71691640

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{4729}}^1$

素因数の和:5119

約数の個数: 32

約数和(自身を含む): 161766000

約数和(自身を除く): 90074360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1516, 1895, 3032, 3790, 4729, 7580, 9458, 15160, 18916, 23645, 37832, 47290, 94580, 189160, 1792291, 3584582, 7169164, 8961455, 14338328, 17922910, 35845820, 71691640]

約数ペア:

[(1, 71691640), (2, 35845820), (4, 17922910), (5, 14338328), (8, 8961455), (10, 7169164), (20, 3584582), (40, 1792291), (379, 189160), (758, 94580), (1516, 47290), (1895, 37832), (3032, 23645), (3790, 18916), (4729, 15160), (7580, 9458)]