20172760

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{4463}}^1$

素因数の和:4587

約数の個数: 32

約数和(自身を含む): 45800640

約数和(自身を除く): 25627880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4463, 4520, 8926, 17852, 22315, 35704, 44630, 89260, 178520, 504319, 1008638, 2017276, 2521595, 4034552, 5043190, 10086380, 20172760]

約数ペア:

[(1, 20172760), (2, 10086380), (4, 5043190), (5, 4034552), (8, 2521595), (10, 2017276), (20, 1008638), (40, 504319), (113, 178520), (226, 89260), (452, 44630), (565, 35704), (904, 22315), (1130, 17852), (2260, 8926), (4463, 4520)]