28778000

素因数分解:

$2^4\times 5^3\times {\mathrm{14389}}^1$

素因数の和:14412

約数の個数: 40

約数和(自身を含む): 69590040

約数和(自身を除く): 40812040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 14389, 28778, 57556, 71945, 115112, 143890, 230224, 287780, 359725, 575560, 719450, 1151120, 1438900, 1798625, 2877800, 3597250, 5755600, 7194500, 14389000, 28778000]

約数ペア:

[(1, 28778000), (2, 14389000), (4, 7194500), (5, 5755600), (8, 3597250), (10, 2877800), (16, 1798625), (20, 1438900), (25, 1151120), (40, 719450), (50, 575560), (80, 359725), (100, 287780), (125, 230224), (200, 143890), (250, 115112), (400, 71945), (500, 57556), (1000, 28778), (2000, 14389)]