18815780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{32441}}^1$

素因数の和:32479

約数の個数: 24

約数和(自身を含む): 40876920

約数和(自身を除く): 22061140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 32441, 64882, 129764, 162205, 324410, 648820, 940789, 1881578, 3763156, 4703945, 9407890, 18815780]

約数ペア:

[(1, 18815780), (2, 9407890), (4, 4703945), (5, 3763156), (10, 1881578), (20, 940789), (29, 648820), (58, 324410), (116, 162205), (145, 129764), (290, 64882), (580, 32441)]