18122480

素因数分解:

$2^4\times 5^1\times {\mathrm{226531}}^1$

素因数の和:226544

約数の個数: 20

約数和(自身を含む): 42134952

約数和(自身を除く): 24012472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 226531, 453062, 906124, 1132655, 1812248, 2265310, 3624496, 4530620, 9061240, 18122480]

約数ペア:

[(1, 18122480), (2, 9061240), (4, 4530620), (5, 3624496), (8, 2265310), (10, 1812248), (16, 1132655), (20, 906124), (40, 453062), (80, 226531)]