4899020

素因数分解:

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

素因数の和:5022

約数の個数: 36

約数和(自身を含む): 11970000

約数和(自身を除く): 7070980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 4999, 9998, 19996, 24995, 34993, 49990, 69986, 99980, 139972, 174965, 244951, 349930, 489902, 699860, 979804, 1224755, 2449510, 4899020]

約数ペア:

[(1, 4899020), (2, 2449510), (4, 1224755), (5, 979804), (7, 699860), (10, 489902), (14, 349930), (20, 244951), (28, 174965), (35, 139972), (49, 99980), (70, 69986), (98, 49990), (140, 34993), (196, 24995), (245, 19996), (490, 9998), (980, 4999)]