18127400

素因数分解:

$2^3\times 5^2\times {\mathrm{233}}^1\times {\mathrm{389}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 42435900

約数和(自身を除く): 24308500

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 233, 389, 466, 778, 932, 1165, 1556, 1864, 1945, 2330, 3112, 3890, 4660, 5825, 7780, 9320, 9725, 11650, 15560, 19450, 23300, 38900, 46600, 77800, 90637, 181274, 362548, 453185, 725096, 906370, 1812740, 2265925, 3625480, 4531850, 9063700, 18127400]

約数ペア:

[(1, 18127400), (2, 9063700), (4, 4531850), (5, 3625480), (8, 2265925), (10, 1812740), (20, 906370), (25, 725096), (40, 453185), (50, 362548), (100, 181274), (200, 90637), (233, 77800), (389, 46600), (466, 38900), (778, 23300), (932, 19450), (1165, 15560), (1556, 11650), (1864, 9725), (1945, 9320), (2330, 7780), (3112, 5825), (3890, 4660)]