1618420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4259}}^1$

素因数の和:4287

約数の個数: 24

約数和(自身を含む): 3578400

約数和(自身を除く): 1959980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 4259, 8518, 17036, 21295, 42590, 80921, 85180, 161842, 323684, 404605, 809210, 1618420]

約数ペア:

[(1, 1618420), (2, 809210), (4, 404605), (5, 323684), (10, 161842), (19, 85180), (20, 80921), (38, 42590), (76, 21295), (95, 17036), (190, 8518), (380, 4259)]