127978508

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{397}}^2$

素因数の和:834

約数の個数: 36

約数和(自身を含む): 265451760

約数和(自身を除く): 137473252

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 397, 406, 794, 812, 1588, 2779, 5558, 11116, 11513, 23026, 46052, 80591, 157609, 161182, 315218, 322364, 630436, 1103263, 2206526, 4413052, 4570661, 9141322, 18282644, 31994627, 63989254, 127978508]

約数ペア:

[(1, 127978508), (2, 63989254), (4, 31994627), (7, 18282644), (14, 9141322), (28, 4570661), (29, 4413052), (58, 2206526), (116, 1103263), (203, 630436), (397, 322364), (406, 315218), (794, 161182), (812, 157609), (1588, 80591), (2779, 46052), (5558, 23026), (11116, 11513)]