100999000

素因数分解:

$2^3\times 5^3\times {\mathrm{100999}}^1$

素因数の和:101020

約数の個数: 32

約数和(自身を含む): 236340000

約数和(自身を除く): 135341000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 100999, 201998, 403996, 504995, 807992, 1009990, 2019980, 2524975, 4039960, 5049950, 10099900, 12624875, 20199800, 25249750, 50499500, 100999000]

約数ペア:

[(1, 100999000), (2, 50499500), (4, 25249750), (5, 20199800), (8, 12624875), (10, 10099900), (20, 5049950), (25, 4039960), (40, 2524975), (50, 2019980), (100, 1009990), (125, 807992), (200, 504995), (250, 403996), (500, 201998), (1000, 100999)]