81279572

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{2753}}^1$

素因数の和:2840

約数の個数: 36

約数和(自身を含む): 158966388

約数和(自身を除く): 77686816

約数列:

[1, 2, 4, 11, 22, 44, 61, 121, 122, 242, 244, 484, 671, 1342, 2684, 2753, 5506, 7381, 11012, 14762, 29524, 30283, 60566, 121132, 167933, 333113, 335866, 666226, 671732, 1332452, 1847263, 3694526, 7389052, 20319893, 40639786, 81279572]

約数ペア:

[(1, 81279572), (2, 40639786), (4, 20319893), (11, 7389052), (22, 3694526), (44, 1847263), (61, 1332452), (121, 671732), (122, 666226), (242, 335866), (244, 333113), (484, 167933), (671, 121132), (1342, 60566), (2684, 30283), (2753, 29524), (5506, 14762), (7381, 11012)]