86180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:179

約数の個数: 24

約数和(自身を含む): 188160

約数和(自身を除く): 101980

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 139, 155, 278, 310, 556, 620, 695, 1390, 2780, 4309, 8618, 17236, 21545, 43090, 86180]

約数ペア:

[(1, 86180), (2, 43090), (4, 21545), (5, 17236), (10, 8618), (20, 4309), (31, 2780), (62, 1390), (124, 695), (139, 620), (155, 556), (278, 310)]