16124440

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{821}}^1$

素因数の和:1323

約数の個数: 32

約数和(自身を含む): 36398160

約数和(自身を除く): 20273720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 821, 982, 1642, 1964, 2455, 3284, 3928, 4105, 4910, 6568, 8210, 9820, 16420, 19640, 32840, 403111, 806222, 1612444, 2015555, 3224888, 4031110, 8062220, 16124440]

約数ペア:

[(1, 16124440), (2, 8062220), (4, 4031110), (5, 3224888), (8, 2015555), (10, 1612444), (20, 806222), (40, 403111), (491, 32840), (821, 19640), (982, 16420), (1642, 9820), (1964, 8210), (2455, 6568), (3284, 4910), (3928, 4105)]