640951992

素因数分解:

$2^3\times 3^2\times {\mathrm{8902111}}^1$

素因数の和:8902123

約数の個数: 24

約数和(自身を含む): 1735911840

約数和(自身を除く): 1094959848

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 8902111, 17804222, 26706333, 35608444, 53412666, 71216888, 80118999, 106825332, 160237998, 213650664, 320475996, 640951992]

約数ペア:

[(1, 640951992), (2, 320475996), (3, 213650664), (4, 160237998), (6, 106825332), (8, 80118999), (9, 71216888), (12, 53412666), (18, 35608444), (24, 26706333), (36, 17804222), (72, 8902111)]