2891420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1087}}^1$

素因数の和:1122

約数の個数: 48

約数和(自身を含む): 7311360

約数和(自身を除く): 4419940

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1087, 1330, 2174, 2660, 4348, 5435, 7609, 10870, 15218, 20653, 21740, 30436, 38045, 41306, 76090, 82612, 103265, 144571, 152180, 206530, 289142, 413060, 578284, 722855, 1445710, 2891420]

約数ペア:

[(1, 2891420), (2, 1445710), (4, 722855), (5, 578284), (7, 413060), (10, 289142), (14, 206530), (19, 152180), (20, 144571), (28, 103265), (35, 82612), (38, 76090), (70, 41306), (76, 38045), (95, 30436), (133, 21740), (140, 20653), (190, 15218), (266, 10870), (380, 7609), (532, 5435), (665, 4348), (1087, 2660), (1330, 2174)]