20868200

素因数分解:

$2^3\times 5^2\times {\mathrm{151}}^1\times {\mathrm{691}}^1$

素因数の和:858

約数の個数: 48

約数和(自身を含む): 48910560

約数和(自身を除く): 28042360

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 151, 200, 302, 604, 691, 755, 1208, 1382, 1510, 2764, 3020, 3455, 3775, 5528, 6040, 6910, 7550, 13820, 15100, 17275, 27640, 30200, 34550, 69100, 104341, 138200, 208682, 417364, 521705, 834728, 1043410, 2086820, 2608525, 4173640, 5217050, 10434100, 20868200]

約数ペア:

[(1, 20868200), (2, 10434100), (4, 5217050), (5, 4173640), (8, 2608525), (10, 2086820), (20, 1043410), (25, 834728), (40, 521705), (50, 417364), (100, 208682), (151, 138200), (200, 104341), (302, 69100), (604, 34550), (691, 30200), (755, 27640), (1208, 17275), (1382, 15100), (1510, 13820), (2764, 7550), (3020, 6910), (3455, 6040), (3775, 5528)]