19612990

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67631}}^1$

素因数の和:67667

約数の個数: 16

約数和(自身を含む): 36521280

約数和(自身を除く): 16908290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 67631, 135262, 338155, 676310, 1961299, 3922598, 9806495, 19612990]

約数ペア:

[(1, 19612990), (2, 9806495), (5, 3922598), (10, 1961299), (29, 676310), (58, 338155), (145, 135262), (290, 67631)]