27931930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:319

約数の個数: 64

約数和(自身を含む): 58060800

約数和(自身を除く): 30128870

約数列:

[1, 2, 5, 10, 13, 26, 29, 31, 58, 62, 65, 130, 145, 155, 239, 290, 310, 377, 403, 478, 754, 806, 899, 1195, 1798, 1885, 2015, 2390, 3107, 3770, 4030, 4495, 6214, 6931, 7409, 8990, 11687, 13862, 14818, 15535, 23374, 31070, 34655, 37045, 58435, 69310, 74090, 90103, 96317, 116870, 180206, 192634, 214861, 429722, 450515, 481585, 901030, 963170, 1074305, 2148610, 2793193, 5586386, 13965965, 27931930]

約数ペア:

[(1, 27931930), (2, 13965965), (5, 5586386), (10, 2793193), (13, 2148610), (26, 1074305), (29, 963170), (31, 901030), (58, 481585), (62, 450515), (65, 429722), (130, 214861), (145, 192634), (155, 180206), (239, 116870), (290, 96317), (310, 90103), (377, 74090), (403, 69310), (478, 58435), (754, 37045), (806, 34655), (899, 31070), (1195, 23374), (1798, 15535), (1885, 14818), (2015, 13862), (2390, 11687), (3107, 8990), (3770, 7409), (4030, 6931), (4495, 6214)]