1689520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{431}}^1$

素因数の和:458

約数の個数: 60

約数和(自身を含む): 4580064

約数和(自身を除く): 2890544

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 431, 490, 560, 784, 862, 980, 1724, 1960, 2155, 3017, 3448, 3920, 4310, 6034, 6896, 8620, 12068, 15085, 17240, 21119, 24136, 30170, 34480, 42238, 48272, 60340, 84476, 105595, 120680, 168952, 211190, 241360, 337904, 422380, 844760, 1689520]

約数ペア:

[(1, 1689520), (2, 844760), (4, 422380), (5, 337904), (7, 241360), (8, 211190), (10, 168952), (14, 120680), (16, 105595), (20, 84476), (28, 60340), (35, 48272), (40, 42238), (49, 34480), (56, 30170), (70, 24136), (80, 21119), (98, 17240), (112, 15085), (140, 12068), (196, 8620), (245, 6896), (280, 6034), (392, 4310), (431, 3920), (490, 3448), (560, 3017), (784, 2155), (862, 1960), (980, 1724)]