657136

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{613}}^1$

素因数の和:688

約数の個数: 20

約数和(自身を含む): 1294312

約数和(自身を除く): 637176

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 613, 1072, 1226, 2452, 4904, 9808, 41071, 82142, 164284, 328568, 657136]

約数ペア:

[(1, 657136), (2, 328568), (4, 164284), (8, 82142), (16, 41071), (67, 9808), (134, 4904), (268, 2452), (536, 1226), (613, 1072)]