18267140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{22277}}^1$

素因数の和:22327

約数の個数: 24

約数和(自身を含む): 39298392

約数和(自身を除く): 21031252

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 22277, 44554, 89108, 111385, 222770, 445540, 913357, 1826714, 3653428, 4566785, 9133570, 18267140]

約数ペア:

[(1, 18267140), (2, 9133570), (4, 4566785), (5, 3653428), (10, 1826714), (20, 913357), (41, 445540), (82, 222770), (164, 111385), (205, 89108), (410, 44554), (820, 22277)]