78878140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{2003}}^1$

素因数の和:2202

約数の個数: 48

約数和(自身を含む): 181802880

約数和(自身を除く): 102924740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 179, 220, 358, 716, 895, 1790, 1969, 2003, 3580, 3938, 4006, 7876, 8012, 9845, 10015, 19690, 20030, 22033, 39380, 40060, 44066, 88132, 110165, 220330, 358537, 440660, 717074, 1434148, 1792685, 3585370, 3943907, 7170740, 7887814, 15775628, 19719535, 39439070, 78878140]

約数ペア:

[(1, 78878140), (2, 39439070), (4, 19719535), (5, 15775628), (10, 7887814), (11, 7170740), (20, 3943907), (22, 3585370), (44, 1792685), (55, 1434148), (110, 717074), (179, 440660), (220, 358537), (358, 220330), (716, 110165), (895, 88132), (1790, 44066), (1969, 40060), (2003, 39380), (3580, 22033), (3938, 20030), (4006, 19690), (7876, 10015), (8012, 9845)]