71317660

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{5563}}^1$

素因数の和:6213

約数の個数: 24

約数和(自身を含む): 150027696

約数和(自身を除く): 78710036

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 5563, 6410, 11126, 12820, 22252, 27815, 55630, 111260, 3565883, 7131766, 14263532, 17829415, 35658830, 71317660]

約数ペア:

[(1, 71317660), (2, 35658830), (4, 17829415), (5, 14263532), (10, 7131766), (20, 3565883), (641, 111260), (1282, 55630), (2564, 27815), (3205, 22252), (5563, 12820), (6410, 11126)]