18538140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{3911}}^1$

素因数の和:4002

約数の個数: 48

約数和(自身を含む): 52577280

約数和(自身を除く): 34039140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 3911, 4740, 7822, 11733, 15644, 19555, 23466, 39110, 46932, 58665, 78220, 117330, 234660, 308969, 617938, 926907, 1235876, 1544845, 1853814, 3089690, 3707628, 4634535, 6179380, 9269070, 18538140]

約数ペア:

[(1, 18538140), (2, 9269070), (3, 6179380), (4, 4634535), (5, 3707628), (6, 3089690), (10, 1853814), (12, 1544845), (15, 1235876), (20, 926907), (30, 617938), (60, 308969), (79, 234660), (158, 117330), (237, 78220), (316, 58665), (395, 46932), (474, 39110), (790, 23466), (948, 19555), (1185, 15644), (1580, 11733), (2370, 7822), (3911, 4740)]