18508720

素因数分解:

$2^4\times 5^1\times {\mathrm{231359}}^1$

素因数の和:231372

約数の個数: 20

約数和(自身を含む): 43032960

約数和(自身を除く): 24524240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 231359, 462718, 925436, 1156795, 1850872, 2313590, 3701744, 4627180, 9254360, 18508720]

約数ペア:

[(1, 18508720), (2, 9254360), (4, 4627180), (5, 3701744), (8, 2313590), (10, 1850872), (16, 1156795), (20, 925436), (40, 462718), (80, 231359)]