19910150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{30631}}^1$

素因数の和:30656

約数の個数: 24

約数和(自身を含む): 39882864

約数和(自身を除く): 19972714

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 30631, 61262, 153155, 306310, 398203, 765775, 796406, 1531550, 1991015, 3982030, 9955075, 19910150]

約数ペア:

[(1, 19910150), (2, 9955075), (5, 3982030), (10, 1991015), (13, 1531550), (25, 796406), (26, 765775), (50, 398203), (65, 306310), (130, 153155), (325, 61262), (650, 30631)]