19628540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{57731}}^1$

素因数の和:57757

約数の個数: 24

約数和(自身を含む): 43645392

約数和(自身を除く): 24016852

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 57731, 115462, 230924, 288655, 577310, 981427, 1154620, 1962854, 3925708, 4907135, 9814270, 19628540]

約数ペア:

[(1, 19628540), (2, 9814270), (4, 4907135), (5, 3925708), (10, 1962854), (17, 1154620), (20, 981427), (34, 577310), (68, 288655), (85, 230924), (170, 115462), (340, 57731)]