77866660

素因数分解:

$2^2\times 5^1\times {\mathrm{1531}}^1\times {\mathrm{2543}}^1$

素因数の和:4083

約数の個数: 24

約数和(自身を含む): 163691136

約数和(自身を除く): 85824476

約数列:

[1, 2, 4, 5, 10, 20, 1531, 2543, 3062, 5086, 6124, 7655, 10172, 12715, 15310, 25430, 30620, 50860, 3893333, 7786666, 15573332, 19466665, 38933330, 77866660]

約数ペア:

[(1, 77866660), (2, 38933330), (4, 19466665), (5, 15573332), (10, 7786666), (20, 3893333), (1531, 50860), (2543, 30620), (3062, 25430), (5086, 15310), (6124, 12715), (7655, 10172)]