207949980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{495119}}^1$

素因数の和:495138

約数の個数: 48

約数和(自身を含む): 665441280

約数和(自身を除く): 457491300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 495119, 990238, 1485357, 1980476, 2475595, 2970714, 3465833, 4951190, 5941428, 6931666, 7426785, 9902380, 10397499, 13863332, 14853570, 17329165, 20794998, 29707140, 34658330, 41589996, 51987495, 69316660, 103974990, 207949980]

約数ペア:

[(1, 207949980), (2, 103974990), (3, 69316660), (4, 51987495), (5, 41589996), (6, 34658330), (7, 29707140), (10, 20794998), (12, 17329165), (14, 14853570), (15, 13863332), (20, 10397499), (21, 9902380), (28, 7426785), (30, 6931666), (35, 5941428), (42, 4951190), (60, 3465833), (70, 2970714), (84, 2475595), (105, 1980476), (140, 1485357), (210, 990238), (420, 495119)]