40120390

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{20161}}^1$

素因数の和:20367

約数の個数: 16

約数和(自身を含む): 72583200

約数和(自身を除く): 32462810

約数列:

[1, 2, 5, 10, 199, 398, 995, 1990, 20161, 40322, 100805, 201610, 4012039, 8024078, 20060195, 40120390]

約数ペア:

[(1, 40120390), (2, 20060195), (5, 8024078), (10, 4012039), (199, 201610), (398, 100805), (995, 40322), (1990, 20161)]