20747029245

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{337}}^1\times {\mathrm{1901}}^1$

素因数の和:2390

約数の個数: 64

約数和(自身を含む): 35548471296

約数和(自身を除く): 14801442051

約数列:

[1, 3, 5, 15, 17, 51, 85, 127, 255, 337, 381, 635, 1011, 1685, 1901, 1905, 2159, 5055, 5703, 5729, 6477, 9505, 10795, 17187, 28515, 28645, 32317, 32385, 42799, 85935, 96951, 128397, 161585, 213995, 241427, 484755, 640637, 641985, 724281, 727583, 1207135, 1921911, 2182749, 3203185, 3621405, 3637915, 4104259, 9609555, 10890829, 10913745, 12312777, 20521295, 32672487, 54454145, 61563885, 81360899, 163362435, 244082697, 406804495, 1220413485, 1383135283, 4149405849, 6915676415, 20747029245]

約数ペア:

[(1, 20747029245), (3, 6915676415), (5, 4149405849), (15, 1383135283), (17, 1220413485), (51, 406804495), (85, 244082697), (127, 163362435), (255, 81360899), (337, 61563885), (381, 54454145), (635, 32672487), (1011, 20521295), (1685, 12312777), (1901, 10913745), (1905, 10890829), (2159, 9609555), (5055, 4104259), (5703, 3637915), (5729, 3621405), (6477, 3203185), (9505, 2182749), (10795, 1921911), (17187, 1207135), (28515, 727583), (28645, 724281), (32317, 641985), (32385, 640637), (42799, 484755), (85935, 241427), (96951, 213995), (128397, 161585)]