201997000

素因数分解:

$2^3\times 5^3\times {\mathrm{201997}}^1$

素因数の和:202018

約数の個数: 32

約数和(自身を含む): 472675320

約数和(自身を除く): 270678320

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 201997, 403994, 807988, 1009985, 1615976, 2019970, 4039940, 5049925, 8079880, 10099850, 20199700, 25249625, 40399400, 50499250, 100998500, 201997000]

約数ペア:

[(1, 201997000), (2, 100998500), (4, 50499250), (5, 40399400), (8, 25249625), (10, 20199700), (20, 10099850), (25, 8079880), (40, 5049925), (50, 4039940), (100, 2019970), (125, 1615976), (200, 1009985), (250, 807988), (500, 403994), (1000, 201997)]