127185640

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{19507}}^1$

素因数の和:19681

約数の個数: 32

約数和(自身を含む): 287938080

約数和(自身を除く): 160752440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 19507, 39014, 78028, 97535, 156056, 195070, 390140, 780280, 3179641, 6359282, 12718564, 15898205, 25437128, 31796410, 63592820, 127185640]

約数ペア:

[(1, 127185640), (2, 63592820), (4, 31796410), (5, 25437128), (8, 15898205), (10, 12718564), (20, 6359282), (40, 3179641), (163, 780280), (326, 390140), (652, 195070), (815, 156056), (1304, 97535), (1630, 78028), (3260, 39014), (6520, 19507)]