12955640

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2063}}^1$

素因数の和:2231

約数の個数: 32

約数和(自身を含む): 29350080

約数和(自身を除く): 16394440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 2063, 3140, 4126, 6280, 8252, 10315, 16504, 20630, 41260, 82520, 323891, 647782, 1295564, 1619455, 2591128, 3238910, 6477820, 12955640]

約数ペア:

[(1, 12955640), (2, 6477820), (4, 3238910), (5, 2591128), (8, 1619455), (10, 1295564), (20, 647782), (40, 323891), (157, 82520), (314, 41260), (628, 20630), (785, 16504), (1256, 10315), (1570, 8252), (2063, 6280), (3140, 4126)]