18702620

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{5737}}^1$

素因数の和:5909

約数の個数: 24

約数和(自身を含む): 39523344

約数和(自身を除く): 20820724

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 5737, 11474, 22948, 28685, 57370, 114740, 935131, 1870262, 3740524, 4675655, 9351310, 18702620]

約数ペア:

[(1, 18702620), (2, 9351310), (4, 4675655), (5, 3740524), (10, 1870262), (20, 935131), (163, 114740), (326, 57370), (652, 28685), (815, 22948), (1630, 11474), (3260, 5737)]