18239120

素因数分解:

$2^4\times 5^1\times {\mathrm{227989}}^1$

素因数の和:228002

約数の個数: 20

約数和(自身を含む): 42406140

約数和(自身を除く): 24167020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227989, 455978, 911956, 1139945, 1823912, 2279890, 3647824, 4559780, 9119560, 18239120]

約数ペア:

[(1, 18239120), (2, 9119560), (4, 4559780), (5, 3647824), (8, 2279890), (10, 1823912), (16, 1139945), (20, 911956), (40, 455978), (80, 227989)]