18272660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2777}}^1$

素因数の和:2840

約数の個数: 48

約数和(自身を含む): 44803584

約数和(自身を除く): 26530924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 2777, 3290, 5554, 6580, 11108, 13885, 19439, 27770, 38878, 55540, 77756, 97195, 130519, 194390, 261038, 388780, 522076, 652595, 913633, 1305190, 1827266, 2610380, 3654532, 4568165, 9136330, 18272660]

約数ペア:

[(1, 18272660), (2, 9136330), (4, 4568165), (5, 3654532), (7, 2610380), (10, 1827266), (14, 1305190), (20, 913633), (28, 652595), (35, 522076), (47, 388780), (70, 261038), (94, 194390), (140, 130519), (188, 97195), (235, 77756), (329, 55540), (470, 38878), (658, 27770), (940, 19439), (1316, 13885), (1645, 11108), (2777, 6580), (3290, 5554)]