4990040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1031}}^1$

素因数の和:1064

約数の個数: 48

約数和(自身を含む): 12353040

約数和(自身を除く): 7363000

約数列:

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

約数ペア:

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