90778000

素因数分解:

$2^4\times 5^3\times {\mathrm{45389}}^1$

素因数の和:45412

約数の個数: 40

約数和(自身を含む): 219506040

約数和(自身を除く): 128728040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 45389, 90778, 181556, 226945, 363112, 453890, 726224, 907780, 1134725, 1815560, 2269450, 3631120, 4538900, 5673625, 9077800, 11347250, 18155600, 22694500, 45389000, 90778000]

約数ペア:

[(1, 90778000), (2, 45389000), (4, 22694500), (5, 18155600), (8, 11347250), (10, 9077800), (16, 5673625), (20, 4538900), (25, 3631120), (40, 2269450), (50, 1815560), (80, 1134725), (100, 907780), (125, 726224), (200, 453890), (250, 363112), (400, 226945), (500, 181556), (1000, 90778), (2000, 45389)]