20123222050

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{129953}}^1$

素因数の和:130147

約数の個数: 48

約数和(自身を含む): 39641168160

約数和(自身を除く): 19517946110

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 163, 190, 326, 475, 815, 950, 1630, 3097, 4075, 6194, 8150, 15485, 30970, 77425, 129953, 154850, 259906, 649765, 1299530, 2469107, 3248825, 4938214, 6497650, 12345535, 21182339, 24691070, 42364678, 61727675, 105911695, 123455350, 211823390, 402464441, 529558475, 804928882, 1059116950, 2012322205, 4024644410, 10061611025, 20123222050]

約数ペア:

[(1, 20123222050), (2, 10061611025), (5, 4024644410), (10, 2012322205), (19, 1059116950), (25, 804928882), (38, 529558475), (50, 402464441), (95, 211823390), (163, 123455350), (190, 105911695), (326, 61727675), (475, 42364678), (815, 24691070), (950, 21182339), (1630, 12345535), (3097, 6497650), (4075, 4938214), (6194, 3248825), (8150, 2469107), (15485, 1299530), (30970, 649765), (77425, 259906), (129953, 154850)]