20125490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{443}}^1$

素因数の和:527

約数の個数: 64

約数和(自身を含む): 46033920

約数和(自身を除く): 25908430

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 59, 70, 77, 110, 118, 154, 295, 385, 413, 443, 590, 649, 770, 826, 886, 1298, 2065, 2215, 3101, 3245, 4130, 4430, 4543, 4873, 6202, 6490, 9086, 9746, 15505, 22715, 24365, 26137, 31010, 34111, 45430, 48730, 52274, 68222, 130685, 170555, 182959, 261370, 287507, 341110, 365918, 575014, 914795, 1437535, 1829590, 2012549, 2875070, 4025098, 10062745, 20125490]

約数ペア:

[(1, 20125490), (2, 10062745), (5, 4025098), (7, 2875070), (10, 2012549), (11, 1829590), (14, 1437535), (22, 914795), (35, 575014), (55, 365918), (59, 341110), (70, 287507), (77, 261370), (110, 182959), (118, 170555), (154, 130685), (295, 68222), (385, 52274), (413, 48730), (443, 45430), (590, 34111), (649, 31010), (770, 26137), (826, 24365), (886, 22715), (1298, 15505), (2065, 9746), (2215, 9086), (3101, 6490), (3245, 6202), (4130, 4873), (4430, 4543)]