208229620

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1\times {\mathrm{463}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 444326400

約数和(自身を除く): 236096780

約数列:

[1, 2, 4, 5, 10, 20, 113, 199, 226, 398, 452, 463, 565, 796, 926, 995, 1130, 1852, 1990, 2260, 2315, 3980, 4630, 9260, 22487, 44974, 52319, 89948, 92137, 104638, 112435, 184274, 209276, 224870, 261595, 368548, 449740, 460685, 523190, 921370, 1046380, 1842740, 10411481, 20822962, 41645924, 52057405, 104114810, 208229620]

約数ペア:

[(1, 208229620), (2, 104114810), (4, 52057405), (5, 41645924), (10, 20822962), (20, 10411481), (113, 1842740), (199, 1046380), (226, 921370), (398, 523190), (452, 460685), (463, 449740), (565, 368548), (796, 261595), (926, 224870), (995, 209276), (1130, 184274), (1852, 112435), (1990, 104638), (2260, 92137), (2315, 89948), (3980, 52319), (4630, 44974), (9260, 22487)]