164342480

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{14779}}^1$

素因数の和:14931

約数の個数: 40

約数和(自身を含む): 384871200

約数和(自身を除く): 220528720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 11120, 14779, 29558, 59116, 73895, 118232, 147790, 236464, 295580, 591160, 1182320, 2054281, 4108562, 8217124, 10271405, 16434248, 20542810, 32868496, 41085620, 82171240, 164342480]

約数ペア:

[(1, 164342480), (2, 82171240), (4, 41085620), (5, 32868496), (8, 20542810), (10, 16434248), (16, 10271405), (20, 8217124), (40, 4108562), (80, 2054281), (139, 1182320), (278, 591160), (556, 295580), (695, 236464), (1112, 147790), (1390, 118232), (2224, 73895), (2780, 59116), (5560, 29558), (11120, 14779)]