18406480

素因数分解:

$2^4\times 5^1\times {\mathrm{230081}}^1$

素因数の和:230094

約数の個数: 20

約数和(自身を含む): 42795252

約数和(自身を除く): 24388772

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 230081, 460162, 920324, 1150405, 1840648, 2300810, 3681296, 4601620, 9203240, 18406480]

約数ペア:

[(1, 18406480), (2, 9203240), (4, 4601620), (5, 3681296), (8, 2300810), (10, 1840648), (16, 1150405), (20, 920324), (40, 460162), (80, 230081)]