821816660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{36013}}^1$

素因数の和:36192

約数の個数: 48

約数和(自身を含む): 1984515456

約数和(自身を除く): 1162698796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 163, 326, 652, 815, 1141, 1630, 2282, 3260, 4564, 5705, 11410, 22820, 36013, 72026, 144052, 180065, 252091, 360130, 504182, 720260, 1008364, 1260455, 2520910, 5041820, 5870119, 11740238, 23480476, 29350595, 41090833, 58701190, 82181666, 117402380, 164363332, 205454165, 410908330, 821816660]

約数ペア:

[(1, 821816660), (2, 410908330), (4, 205454165), (5, 164363332), (7, 117402380), (10, 82181666), (14, 58701190), (20, 41090833), (28, 29350595), (35, 23480476), (70, 11740238), (140, 5870119), (163, 5041820), (326, 2520910), (652, 1260455), (815, 1008364), (1141, 720260), (1630, 504182), (2282, 360130), (3260, 252091), (4564, 180065), (5705, 144052), (11410, 72026), (22820, 36013)]