2748500

素因数分解:

$2^2\times 5^3\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:281

約数の個数: 48

約数和(自身を含む): 6289920

約数和(自身を除く): 3541420

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 125, 230, 239, 250, 460, 478, 500, 575, 956, 1150, 1195, 2300, 2390, 2875, 4780, 5497, 5750, 5975, 10994, 11500, 11950, 21988, 23900, 27485, 29875, 54970, 59750, 109940, 119500, 137425, 274850, 549700, 687125, 1374250, 2748500]

約数ペア:

[(1, 2748500), (2, 1374250), (4, 687125), (5, 549700), (10, 274850), (20, 137425), (23, 119500), (25, 109940), (46, 59750), (50, 54970), (92, 29875), (100, 27485), (115, 23900), (125, 21988), (230, 11950), (239, 11500), (250, 10994), (460, 5975), (478, 5750), (500, 5497), (575, 4780), (956, 2875), (1150, 2390), (1195, 2300)]