1388359014728

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{406428283}}^1$

素因数の和:406428357

約数の個数: 32

約数和(自身を含む): 3023826432960

約数和(自身を除く): 1635467418232

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 406428283, 812856566, 1625713132, 2844997981, 3251426264, 5689995962, 11379991924, 22759983848, 24792125263, 49584250526, 99168501052, 173544876841, 198337002104, 347089753682, 694179507364, 1388359014728]

約数ペア:

[(1, 1388359014728), (2, 694179507364), (4, 347089753682), (7, 198337002104), (8, 173544876841), (14, 99168501052), (28, 49584250526), (56, 24792125263), (61, 22759983848), (122, 11379991924), (244, 5689995962), (427, 3251426264), (488, 2844997981), (854, 1625713132), (1708, 812856566), (3416, 406428283)]