25555000

素因数分解:

$2^3\times 5^4\times {\mathrm{19}}^1\times {\mathrm{269}}^1$

素因数の和:314

約数の個数: 80

約数和(自身を含む): 63261000

約数和(自身を除く): 37706000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 269, 380, 475, 500, 538, 625, 760, 950, 1000, 1076, 1250, 1345, 1900, 2152, 2375, 2500, 2690, 3800, 4750, 5000, 5111, 5380, 6725, 9500, 10222, 10760, 11875, 13450, 19000, 20444, 23750, 25555, 26900, 33625, 40888, 47500, 51110, 53800, 67250, 95000, 102220, 127775, 134500, 168125, 204440, 255550, 269000, 336250, 511100, 638875, 672500, 1022200, 1277750, 1345000, 2555500, 3194375, 5111000, 6388750, 12777500, 25555000]

約数ペア:

[(1, 25555000), (2, 12777500), (4, 6388750), (5, 5111000), (8, 3194375), (10, 2555500), (19, 1345000), (20, 1277750), (25, 1022200), (38, 672500), (40, 638875), (50, 511100), (76, 336250), (95, 269000), (100, 255550), (125, 204440), (152, 168125), (190, 134500), (200, 127775), (250, 102220), (269, 95000), (380, 67250), (475, 53800), (500, 51110), (538, 47500), (625, 40888), (760, 33625), (950, 26900), (1000, 25555), (1076, 23750), (1250, 20444), (1345, 19000), (1900, 13450), (2152, 11875), (2375, 10760), (2500, 10222), (2690, 9500), (3800, 6725), (4750, 5380), (5000, 5111)]