8266368920

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1486757}}^1$

素因数の和:1486907

約数の個数: 32

約数和(自身を含む): 18733150800

約数和(自身を除く): 10466781880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 1486757, 2973514, 5947028, 7433785, 11894056, 14867570, 29735140, 59470280, 206659223, 413318446, 826636892, 1033296115, 1653273784, 2066592230, 4133184460, 8266368920]

約数ペア:

[(1, 8266368920), (2, 4133184460), (4, 2066592230), (5, 1653273784), (8, 1033296115), (10, 826636892), (20, 413318446), (40, 206659223), (139, 59470280), (278, 29735140), (556, 14867570), (695, 11894056), (1112, 7433785), (1390, 5947028), (2780, 2973514), (5560, 1486757)]