2111900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{431}}^1$

素因数の和:459

約数の個数: 54

約数和(自身を含む): 5343408

約数和(自身を除く): 3231508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 431, 490, 700, 862, 980, 1225, 1724, 2155, 2450, 3017, 4310, 4900, 6034, 8620, 10775, 12068, 15085, 21119, 21550, 30170, 42238, 43100, 60340, 75425, 84476, 105595, 150850, 211190, 301700, 422380, 527975, 1055950, 2111900]

約数ペア:

[(1, 2111900), (2, 1055950), (4, 527975), (5, 422380), (7, 301700), (10, 211190), (14, 150850), (20, 105595), (25, 84476), (28, 75425), (35, 60340), (49, 43100), (50, 42238), (70, 30170), (98, 21550), (100, 21119), (140, 15085), (175, 12068), (196, 10775), (245, 8620), (350, 6034), (431, 4900), (490, 4310), (700, 3017), (862, 2450), (980, 2155), (1225, 1724)]