1688540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1723}}^1$

素因数の和:1746

約数の個数: 36

約数和(自身を含む): 4127256

約数和(自身を除く): 2438716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1723, 3446, 6892, 8615, 12061, 17230, 24122, 34460, 48244, 60305, 84427, 120610, 168854, 241220, 337708, 422135, 844270, 1688540]

約数ペア:

[(1, 1688540), (2, 844270), (4, 422135), (5, 337708), (7, 241220), (10, 168854), (14, 120610), (20, 84427), (28, 60305), (35, 48244), (49, 34460), (70, 24122), (98, 17230), (140, 12061), (196, 8615), (245, 6892), (490, 3446), (980, 1723)]