66796480

素因数分解:

$2^6\times 5^1\times {\mathrm{208739}}^1$

素因数の和:208756

約数の個数: 28

約数和(自身を含む): 159059880

約数和(自身を除く): 92263400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 208739, 417478, 834956, 1043695, 1669912, 2087390, 3339824, 4174780, 6679648, 8349560, 13359296, 16699120, 33398240, 66796480]

約数ペア:

[(1, 66796480), (2, 33398240), (4, 16699120), (5, 13359296), (8, 8349560), (10, 6679648), (16, 4174780), (20, 3339824), (32, 2087390), (40, 1669912), (64, 1043695), (80, 834956), (160, 417478), (320, 208739)]