20203865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 27993600

約数和(自身を除く): 7789735

約数列:

[1, 5, 11, 29, 53, 55, 145, 239, 265, 319, 583, 1195, 1537, 1595, 2629, 2915, 6931, 7685, 12667, 13145, 16907, 34655, 63335, 76241, 84535, 139337, 367343, 381205, 696685, 1836715, 4040773, 20203865]

約数ペア:

[(1, 20203865), (5, 4040773), (11, 1836715), (29, 696685), (53, 381205), (55, 367343), (145, 139337), (239, 84535), (265, 76241), (319, 63335), (583, 34655), (1195, 16907), (1537, 13145), (1595, 12667), (2629, 7685), (2915, 6931)]