20070920

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{3323}}^1$

素因数の和:3485

約数の個数: 32

約数和(自身を含む): 45472320

約数和(自身を除く): 25401400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 3323, 6040, 6646, 13292, 16615, 26584, 33230, 66460, 132920, 501773, 1003546, 2007092, 2508865, 4014184, 5017730, 10035460, 20070920]

約数ペア:

[(1, 20070920), (2, 10035460), (4, 5017730), (5, 4014184), (8, 2508865), (10, 2007092), (20, 1003546), (40, 501773), (151, 132920), (302, 66460), (604, 33230), (755, 26584), (1208, 16615), (1510, 13292), (3020, 6646), (3323, 6040)]