138541280

素因数分解:

$2^5\times 5^1\times {\mathrm{677}}^1\times {\mathrm{1279}}^1$

素因数の和:1971

約数の個数: 48

約数和(自身を含む): 328043520

約数和(自身を除く): 189502240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 677, 1279, 1354, 2558, 2708, 3385, 5116, 5416, 6395, 6770, 10232, 10832, 12790, 13540, 20464, 21664, 25580, 27080, 40928, 51160, 54160, 102320, 108320, 204640, 865883, 1731766, 3463532, 4329415, 6927064, 8658830, 13854128, 17317660, 27708256, 34635320, 69270640, 138541280]

約数ペア:

[(1, 138541280), (2, 69270640), (4, 34635320), (5, 27708256), (8, 17317660), (10, 13854128), (16, 8658830), (20, 6927064), (32, 4329415), (40, 3463532), (80, 1731766), (160, 865883), (677, 204640), (1279, 108320), (1354, 102320), (2558, 54160), (2708, 51160), (3385, 40928), (5116, 27080), (5416, 25580), (6395, 21664), (6770, 20464), (10232, 13540), (10832, 12790)]