65980580

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{6719}}^1$

素因数の和:7219

約数の個数: 24

約数和(自身を含む): 138862080

約数和(自身を除く): 72881500

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 6719, 9820, 13438, 26876, 33595, 67190, 134380, 3299029, 6598058, 13196116, 16495145, 32990290, 65980580]

約数ペア:

[(1, 65980580), (2, 32990290), (4, 16495145), (5, 13196116), (10, 6598058), (20, 3299029), (491, 134380), (982, 67190), (1964, 33595), (2455, 26876), (4910, 13438), (6719, 9820)]