40399600

素因数分解:

$2^4\times 5^2\times {\mathrm{100999}}^1$

素因数の和:101017

約数の個数: 30

約数和(自身を含む): 97061000

約数和(自身を除く): 56661400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 100999, 201998, 403996, 504995, 807992, 1009990, 1615984, 2019980, 2524975, 4039960, 5049950, 8079920, 10099900, 20199800, 40399600]

約数ペア:

[(1, 40399600), (2, 20199800), (4, 10099900), (5, 8079920), (8, 5049950), (10, 4039960), (16, 2524975), (20, 2019980), (25, 1615984), (40, 1009990), (50, 807992), (80, 504995), (100, 403996), (200, 201998), (400, 100999)]