2555500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{269}}^1$

素因数の和:307

約数の個数: 48

約数和(自身を含む): 5896800

約数和(自身を除く): 3341300

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 269, 380, 475, 500, 538, 950, 1076, 1345, 1900, 2375, 2690, 4750, 5111, 5380, 6725, 9500, 10222, 13450, 20444, 25555, 26900, 33625, 51110, 67250, 102220, 127775, 134500, 255550, 511100, 638875, 1277750, 2555500]

約数ペア:

[(1, 2555500), (2, 1277750), (4, 638875), (5, 511100), (10, 255550), (19, 134500), (20, 127775), (25, 102220), (38, 67250), (50, 51110), (76, 33625), (95, 26900), (100, 25555), (125, 20444), (190, 13450), (250, 10222), (269, 9500), (380, 6725), (475, 5380), (500, 5111), (538, 4750), (950, 2690), (1076, 2375), (1345, 1900)]