131196920

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{14449}}^1$

素因数の和:14687

約数の個数: 32

約数和(自身を含む): 296514000

約数和(自身を除く): 165317080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2270, 4540, 9080, 14449, 28898, 57796, 72245, 115592, 144490, 288980, 577960, 3279923, 6559846, 13119692, 16399615, 26239384, 32799230, 65598460, 131196920]

約数ペア:

[(1, 131196920), (2, 65598460), (4, 32799230), (5, 26239384), (8, 16399615), (10, 13119692), (20, 6559846), (40, 3279923), (227, 577960), (454, 288980), (908, 144490), (1135, 115592), (1816, 72245), (2270, 57796), (4540, 28898), (9080, 14449)]