81508480

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6703}}^1$

素因数の和:6741

約数の個数: 64

約数和(自身を含む): 205142400

約数和(自身を除く): 123633920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 2432, 3040, 6080, 6703, 12160, 13406, 26812, 33515, 53624, 67030, 107248, 127357, 134060, 214496, 254714, 268120, 428992, 509428, 536240, 636785, 857984, 1018856, 1072480, 1273570, 2037712, 2144960, 2547140, 4075424, 4289920, 5094280, 8150848, 10188560, 16301696, 20377120, 40754240, 81508480]

約数ペア:

[(1, 81508480), (2, 40754240), (4, 20377120), (5, 16301696), (8, 10188560), (10, 8150848), (16, 5094280), (19, 4289920), (20, 4075424), (32, 2547140), (38, 2144960), (40, 2037712), (64, 1273570), (76, 1072480), (80, 1018856), (95, 857984), (128, 636785), (152, 536240), (160, 509428), (190, 428992), (304, 268120), (320, 254714), (380, 214496), (608, 134060), (640, 127357), (760, 107248), (1216, 67030), (1520, 53624), (2432, 33515), (3040, 26812), (6080, 13406), (6703, 12160)]