31380310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1213}}^1$

素因数の和:1432

約数の個数: 32

約数和(自身を含む): 61185600

約数和(自身を除く): 29805290

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 199, 398, 995, 1213, 1990, 2426, 2587, 5174, 6065, 12130, 12935, 15769, 25870, 31538, 78845, 157690, 241387, 482774, 1206935, 2413870, 3138031, 6276062, 15690155, 31380310]

約数ペア:

[(1, 31380310), (2, 15690155), (5, 6276062), (10, 3138031), (13, 2413870), (26, 1206935), (65, 482774), (130, 241387), (199, 157690), (398, 78845), (995, 31538), (1213, 25870), (1990, 15769), (2426, 12935), (2587, 12130), (5174, 6065)]