80921780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2777}}^1$

素因数の和:2864

約数の個数: 48

約数和(自身を含む): 179214336

約数和(自身を除く): 98292556

約数列:

[1, 2, 4, 5, 10, 20, 31, 47, 62, 94, 124, 155, 188, 235, 310, 470, 620, 940, 1457, 2777, 2914, 5554, 5828, 7285, 11108, 13885, 14570, 27770, 29140, 55540, 86087, 130519, 172174, 261038, 344348, 430435, 522076, 652595, 860870, 1305190, 1721740, 2610380, 4046089, 8092178, 16184356, 20230445, 40460890, 80921780]

約数ペア:

[(1, 80921780), (2, 40460890), (4, 20230445), (5, 16184356), (10, 8092178), (20, 4046089), (31, 2610380), (47, 1721740), (62, 1305190), (94, 860870), (124, 652595), (155, 522076), (188, 430435), (235, 344348), (310, 261038), (470, 172174), (620, 130519), (940, 86087), (1457, 55540), (2777, 29140), (2914, 27770), (5554, 14570), (5828, 13885), (7285, 11108)]