1387401890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19820027}}^1$

素因数の和:19820041

約数の個数: 16

約数和(自身を含む): 2854084032

約数和(自身を除く): 1466682142

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 19820027, 39640054, 99100135, 138740189, 198200270, 277480378, 693700945, 1387401890]

約数ペア:

[(1, 1387401890), (2, 693700945), (5, 277480378), (7, 198200270), (10, 138740189), (14, 99100135), (35, 39640054), (70, 19820027)]