199964660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{2909}}^1$

素因数の和:3416

約数の個数: 48

約数和(自身を含む): 481057920

約数和(自身を除く): 281093260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 491, 982, 1964, 2455, 2909, 3437, 4910, 5818, 6874, 9820, 11636, 13748, 14545, 17185, 20363, 29090, 34370, 40726, 58180, 68740, 81452, 101815, 203630, 407260, 1428319, 2856638, 5713276, 7141595, 9998233, 14283190, 19996466, 28566380, 39992932, 49991165, 99982330, 199964660]

約数ペア:

[(1, 199964660), (2, 99982330), (4, 49991165), (5, 39992932), (7, 28566380), (10, 19996466), (14, 14283190), (20, 9998233), (28, 7141595), (35, 5713276), (70, 2856638), (140, 1428319), (491, 407260), (982, 203630), (1964, 101815), (2455, 81452), (2909, 68740), (3437, 58180), (4910, 40726), (5818, 34370), (6874, 29090), (9820, 20363), (11636, 17185), (13748, 14545)]