18689000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{1699}}^1$

素因数の和:1731

約数の個数: 64

約数和(自身を含む): 47736000

約数和(自身を除く): 29047000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 200, 220, 250, 275, 440, 500, 550, 1000, 1100, 1375, 1699, 2200, 2750, 3398, 5500, 6796, 8495, 11000, 13592, 16990, 18689, 33980, 37378, 42475, 67960, 74756, 84950, 93445, 149512, 169900, 186890, 212375, 339800, 373780, 424750, 467225, 747560, 849500, 934450, 1699000, 1868900, 2336125, 3737800, 4672250, 9344500, 18689000]

約数ペア:

[(1, 18689000), (2, 9344500), (4, 4672250), (5, 3737800), (8, 2336125), (10, 1868900), (11, 1699000), (20, 934450), (22, 849500), (25, 747560), (40, 467225), (44, 424750), (50, 373780), (55, 339800), (88, 212375), (100, 186890), (110, 169900), (125, 149512), (200, 93445), (220, 84950), (250, 74756), (275, 67960), (440, 42475), (500, 37378), (550, 33980), (1000, 18689), (1100, 16990), (1375, 13592), (1699, 11000), (2200, 8495), (2750, 6796), (3398, 5500)]