18818440

素因数分解:

$2^3\times 5^1\times {\mathrm{470461}}^1$

素因数の和:470472

約数の個数: 16

約数和(自身を含む): 42341580

約数和(自身を除く): 23523140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 470461, 940922, 1881844, 2352305, 3763688, 4704610, 9409220, 18818440]

約数ペア:

[(1, 18818440), (2, 9409220), (4, 4704610), (5, 3763688), (8, 2352305), (10, 1881844), (20, 940922), (40, 470461)]