17972000

素因数分解:

$2^5\times 5^3\times {\mathrm{4493}}^1$

素因数の和:4518

約数の個数: 48

約数和(自身を含む): 44167032

約数和(自身を除く): 26195032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 4493, 8986, 17972, 22465, 35944, 44930, 71888, 89860, 112325, 143776, 179720, 224650, 359440, 449300, 561625, 718880, 898600, 1123250, 1797200, 2246500, 3594400, 4493000, 8986000, 17972000]

約数ペア:

[(1, 17972000), (2, 8986000), (4, 4493000), (5, 3594400), (8, 2246500), (10, 1797200), (16, 1123250), (20, 898600), (25, 718880), (32, 561625), (40, 449300), (50, 359440), (80, 224650), (100, 179720), (125, 143776), (160, 112325), (200, 89860), (250, 71888), (400, 44930), (500, 35944), (800, 22465), (1000, 17972), (2000, 8986), (4000, 4493)]