20174140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4969}}^1$

素因数の和:5014

約数の個数: 48

約数和(自身を含む): 50097600

約数和(自身を除く): 29923460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 4969, 9938, 19876, 24845, 34783, 49690, 69566, 99380, 139132, 144101, 173915, 288202, 347830, 576404, 695660, 720505, 1008707, 1441010, 2017414, 2882020, 4034828, 5043535, 10087070, 20174140]

約数ペア:

[(1, 20174140), (2, 10087070), (4, 5043535), (5, 4034828), (7, 2882020), (10, 2017414), (14, 1441010), (20, 1008707), (28, 720505), (29, 695660), (35, 576404), (58, 347830), (70, 288202), (116, 173915), (140, 144101), (145, 139132), (203, 99380), (290, 69566), (406, 49690), (580, 34783), (812, 24845), (1015, 19876), (2030, 9938), (4060, 4969)]