18070420

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{12377}}^1$

素因数の和:12459

約数の個数: 24

約数和(自身を含む): 38470824

約数和(自身を除く): 20400404

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 12377, 24754, 49508, 61885, 123770, 247540, 903521, 1807042, 3614084, 4517605, 9035210, 18070420]

約数ペア:

[(1, 18070420), (2, 9035210), (4, 4517605), (5, 3614084), (10, 1807042), (20, 903521), (73, 247540), (146, 123770), (292, 61885), (365, 49508), (730, 24754), (1460, 12377)]