1399720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{4999}}^1$

素因数の和:5017

約数の個数: 32

約数和(自身を含む): 3600000

約数和(自身を除く): 2200280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 4999, 9998, 19996, 24995, 34993, 39992, 49990, 69986, 99980, 139972, 174965, 199960, 279944, 349930, 699860, 1399720]

約数ペア:

[(1, 1399720), (2, 699860), (4, 349930), (5, 279944), (7, 199960), (8, 174965), (10, 139972), (14, 99980), (20, 69986), (28, 49990), (35, 39992), (40, 34993), (56, 24995), (70, 19996), (140, 9998), (280, 4999)]