19306180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{31139}}^1$

素因数の和:31179

約数の個数: 24

約数和(自身を含む): 41852160

約数和(自身を除く): 22545980

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 31139, 62278, 124556, 155695, 311390, 622780, 965309, 1930618, 3861236, 4826545, 9653090, 19306180]

約数ペア:

[(1, 19306180), (2, 9653090), (4, 4826545), (5, 3861236), (10, 1930618), (20, 965309), (31, 622780), (62, 311390), (124, 155695), (155, 124556), (310, 62278), (620, 31139)]