662780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1069}}^1$

素因数の和:1109

約数の個数: 24

約数和(自身を含む): 1438080

約数和(自身を除く): 775300

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 1069, 2138, 4276, 5345, 10690, 21380, 33139, 66278, 132556, 165695, 331390, 662780]

約数ペア:

[(1, 662780), (2, 331390), (4, 165695), (5, 132556), (10, 66278), (20, 33139), (31, 21380), (62, 10690), (124, 5345), (155, 4276), (310, 2138), (620, 1069)]