20205490

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{65179}}^1$

素因数の和:65217

約数の個数: 16

約数和(自身を含む): 37543680

約数和(自身を除く): 17338190

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 65179, 130358, 325895, 651790, 2020549, 4041098, 10102745, 20205490]

約数ペア:

[(1, 20205490), (2, 10102745), (5, 4041098), (10, 2020549), (31, 651790), (62, 325895), (155, 130358), (310, 65179)]