20004200

素因数分解:

$2^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{3449}}^1$

素因数の和:3494

約数の個数: 48

約数和(自身を含む): 48127500

約数和(自身を除く): 28123300

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 100, 116, 145, 200, 232, 290, 580, 725, 1160, 1450, 2900, 3449, 5800, 6898, 13796, 17245, 27592, 34490, 68980, 86225, 100021, 137960, 172450, 200042, 344900, 400084, 500105, 689800, 800168, 1000210, 2000420, 2500525, 4000840, 5001050, 10002100, 20004200]

約数ペア:

[(1, 20004200), (2, 10002100), (4, 5001050), (5, 4000840), (8, 2500525), (10, 2000420), (20, 1000210), (25, 800168), (29, 689800), (40, 500105), (50, 400084), (58, 344900), (100, 200042), (116, 172450), (145, 137960), (200, 100021), (232, 86225), (290, 68980), (580, 34490), (725, 27592), (1160, 17245), (1450, 13796), (2900, 6898), (3449, 5800)]