18010420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{11399}}^1$

素因数の和:11487

約数の個数: 24

約数和(自身を含む): 38304000

約数和(自身を除く): 20293580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 11399, 22798, 45596, 56995, 113990, 227980, 900521, 1801042, 3602084, 4502605, 9005210, 18010420]

約数ペア:

[(1, 18010420), (2, 9005210), (4, 4502605), (5, 3602084), (10, 1801042), (20, 900521), (79, 227980), (158, 113990), (316, 56995), (395, 45596), (790, 22798), (1580, 11399)]