9980080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1031}}^1$

素因数の和:1066

約数の個数: 60

約数和(自身を含む): 25529616

約数和(自身を除く): 15549536

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1031, 1210, 1936, 2062, 2420, 4124, 4840, 5155, 8248, 9680, 10310, 11341, 16496, 20620, 22682, 41240, 45364, 56705, 82480, 90728, 113410, 124751, 181456, 226820, 249502, 453640, 499004, 623755, 907280, 998008, 1247510, 1996016, 2495020, 4990040, 9980080]

約数ペア:

[(1, 9980080), (2, 4990040), (4, 2495020), (5, 1996016), (8, 1247510), (10, 998008), (11, 907280), (16, 623755), (20, 499004), (22, 453640), (40, 249502), (44, 226820), (55, 181456), (80, 124751), (88, 113410), (110, 90728), (121, 82480), (176, 56705), (220, 45364), (242, 41240), (440, 22682), (484, 20620), (605, 16496), (880, 11341), (968, 10310), (1031, 9680), (1210, 8248), (1936, 5155), (2062, 4840), (2420, 4124)]