28861665

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:111

約数の個数: 128

約数和(自身を含む): 63037440

約数和(自身を除く): 34175775

約数列:

[1, 3, 5, 7, 15, 17, 19, 21, 23, 35, 37, 51, 57, 69, 85, 95, 105, 111, 115, 119, 133, 161, 185, 255, 259, 285, 323, 345, 357, 391, 399, 437, 483, 555, 595, 629, 665, 703, 777, 805, 851, 969, 1173, 1295, 1311, 1615, 1785, 1887, 1955, 1995, 2109, 2185, 2261, 2415, 2553, 2737, 3059, 3145, 3515, 3885, 4255, 4403, 4845, 4921, 5865, 5957, 6555, 6783, 7429, 8211, 9177, 9435, 10545, 11305, 11951, 12765, 13209, 13685, 14467, 14763, 15295, 16169, 17871, 22015, 22287, 24605, 29785, 33915, 35853, 37145, 41055, 43401, 45885, 48507, 52003, 59755, 66045, 72335, 73815, 80845, 83657, 89355, 101269, 111435, 113183, 156009, 179265, 217005, 242535, 250971, 260015, 274873, 303807, 339549, 418285, 506345, 565915, 780045, 824619, 1254855, 1374365, 1519035, 1697745, 1924111, 4123095, 5772333, 9620555, 28861665]

約数ペア:

[(1, 28861665), (3, 9620555), (5, 5772333), (7, 4123095), (15, 1924111), (17, 1697745), (19, 1519035), (21, 1374365), (23, 1254855), (35, 824619), (37, 780045), (51, 565915), (57, 506345), (69, 418285), (85, 339549), (95, 303807), (105, 274873), (111, 260015), (115, 250971), (119, 242535), (133, 217005), (161, 179265), (185, 156009), (255, 113183), (259, 111435), (285, 101269), (323, 89355), (345, 83657), (357, 80845), (391, 73815), (399, 72335), (437, 66045), (483, 59755), (555, 52003), (595, 48507), (629, 45885), (665, 43401), (703, 41055), (777, 37145), (805, 35853), (851, 33915), (969, 29785), (1173, 24605), (1295, 22287), (1311, 22015), (1615, 17871), (1785, 16169), (1887, 15295), (1955, 14763), (1995, 14467), (2109, 13685), (2185, 13209), (2261, 12765), (2415, 11951), (2553, 11305), (2737, 10545), (3059, 9435), (3145, 9177), (3515, 8211), (3885, 7429), (4255, 6783), (4403, 6555), (4845, 5957), (4921, 5865)]