18739240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36037}}^1$

素因数の和:36061

約数の個数: 32

約数和(自身を含む): 45407880

約数和(自身を除く): 26668640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 36037, 72074, 144148, 180185, 288296, 360370, 468481, 720740, 936962, 1441480, 1873924, 2342405, 3747848, 4684810, 9369620, 18739240]

約数ペア:

[(1, 18739240), (2, 9369620), (4, 4684810), (5, 3747848), (8, 2342405), (10, 1873924), (13, 1441480), (20, 936962), (26, 720740), (40, 468481), (52, 360370), (65, 288296), (104, 180185), (130, 144148), (260, 72074), (520, 36037)]