2799440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{4999}}^1$

素因数の和:5019

約数の個数: 40

約数和(自身を含む): 7440000

約数和(自身を除く): 4640560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 4999, 9998, 19996, 24995, 34993, 39992, 49990, 69986, 79984, 99980, 139972, 174965, 199960, 279944, 349930, 399920, 559888, 699860, 1399720, 2799440]

約数ペア:

[(1, 2799440), (2, 1399720), (4, 699860), (5, 559888), (7, 399920), (8, 349930), (10, 279944), (14, 199960), (16, 174965), (20, 139972), (28, 99980), (35, 79984), (40, 69986), (56, 49990), (70, 39992), (80, 34993), (112, 24995), (140, 19996), (280, 9998), (560, 4999)]