18260420

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{2917}}^1$

素因数の和:3239

約数の個数: 24

約数和(自身を含む): 38482584

約数和(自身を除く): 20222164

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1565, 2917, 3130, 5834, 6260, 11668, 14585, 29170, 58340, 913021, 1826042, 3652084, 4565105, 9130210, 18260420]

約数ペア:

[(1, 18260420), (2, 9130210), (4, 4565105), (5, 3652084), (10, 1826042), (20, 913021), (313, 58340), (626, 29170), (1252, 14585), (1565, 11668), (2917, 6260), (3130, 5834)]