18007000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{1637}}^1$

素因数の和:1669

約数の個数: 64

約数和(自身を含む): 45995040

約数和(自身を除く): 27988040

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, 1637, 2200, 2750, 3274, 5500, 6548, 8185, 11000, 13096, 16370, 18007, 32740, 36014, 40925, 65480, 72028, 81850, 90035, 144056, 163700, 180070, 204625, 327400, 360140, 409250, 450175, 720280, 818500, 900350, 1637000, 1800700, 2250875, 3601400, 4501750, 9003500, 18007000]

約数ペア:

[(1, 18007000), (2, 9003500), (4, 4501750), (5, 3601400), (8, 2250875), (10, 1800700), (11, 1637000), (20, 900350), (22, 818500), (25, 720280), (40, 450175), (44, 409250), (50, 360140), (55, 327400), (88, 204625), (100, 180070), (110, 163700), (125, 144056), (200, 90035), (220, 81850), (250, 72028), (275, 65480), (440, 40925), (500, 36014), (550, 32740), (1000, 18007), (1100, 16370), (1375, 13096), (1637, 11000), (2200, 8185), (2750, 6548), (3274, 5500)]