12777500

素因数分解:

$2^2\times 5^4\times {\mathrm{19}}^1\times {\mathrm{269}}^1$

素因数の和:312

約数の個数: 60

約数和(自身を含む): 29521800

約数和(自身を除く): 16744300

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 269, 380, 475, 500, 538, 625, 950, 1076, 1250, 1345, 1900, 2375, 2500, 2690, 4750, 5111, 5380, 6725, 9500, 10222, 11875, 13450, 20444, 23750, 25555, 26900, 33625, 47500, 51110, 67250, 102220, 127775, 134500, 168125, 255550, 336250, 511100, 638875, 672500, 1277750, 2555500, 3194375, 6388750, 12777500]

約数ペア:

[(1, 12777500), (2, 6388750), (4, 3194375), (5, 2555500), (10, 1277750), (19, 672500), (20, 638875), (25, 511100), (38, 336250), (50, 255550), (76, 168125), (95, 134500), (100, 127775), (125, 102220), (190, 67250), (250, 51110), (269, 47500), (380, 33625), (475, 26900), (500, 25555), (538, 23750), (625, 20444), (950, 13450), (1076, 11875), (1250, 10222), (1345, 9500), (1900, 6725), (2375, 5380), (2500, 5111), (2690, 4750)]