20105150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{30931}}^1$

素因数の和:30956

約数の個数: 24

約数和(自身を含む): 40273464

約数和(自身を除く): 20168314

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 30931, 61862, 154655, 309310, 402103, 773275, 804206, 1546550, 2010515, 4021030, 10052575, 20105150]

約数ペア:

[(1, 20105150), (2, 10052575), (5, 4021030), (10, 2010515), (13, 1546550), (25, 804206), (26, 773275), (50, 402103), (65, 309310), (130, 154655), (325, 61862), (650, 30931)]