203214820

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{51059}}^1$

素因数の和:51267

約数の個数: 24

約数和(自身を含む): 428904000

約数和(自身を除く): 225689180

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 51059, 102118, 204236, 255295, 510590, 1021180, 10160741, 20321482, 40642964, 50803705, 101607410, 203214820]

約数ペア:

[(1, 203214820), (2, 101607410), (4, 50803705), (5, 40642964), (10, 20321482), (20, 10160741), (199, 1021180), (398, 510590), (796, 255295), (995, 204236), (1990, 102118), (3980, 51059)]