21725236480

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{601}}^1\times {\mathrm{911}}^1$

素因数の和:1564

約数の個数: 144

約数和(自身を含む): 53865842688

約数和(自身を除く): 32140606208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 601, 620, 640, 911, 992, 1202, 1240, 1280, 1822, 1984, 2404, 2480, 3005, 3644, 3968, 4555, 4808, 4960, 6010, 7288, 7936, 9110, 9616, 9920, 12020, 14576, 18220, 18631, 19232, 19840, 24040, 28241, 29152, 36440, 37262, 38464, 39680, 48080, 56482, 58304, 72880, 74524, 76928, 93155, 96160, 112964, 116608, 141205, 145760, 149048, 153856, 186310, 192320, 225928, 233216, 282410, 291520, 298096, 372620, 384640, 451856, 547511, 564820, 583040, 596192, 745240, 769280, 903712, 1095022, 1129640, 1166080, 1192384, 1490480, 1807424, 2190044, 2259280, 2384768, 2737555, 2980960, 3614848, 4380088, 4518560, 4769536, 5475110, 5961920, 7229696, 8760176, 9037120, 10950220, 11923840, 16972841, 17520352, 18074240, 21900440, 23847680, 33945682, 35040704, 36148480, 43800880, 67891364, 70081408, 84864205, 87601760, 135782728, 140162816, 169728410, 175203520, 271565456, 339456820, 350407040, 543130912, 678913640, 700814080, 1086261824, 1357827280, 2172523648, 2715654560, 4345047296, 5431309120, 10862618240, 21725236480]

約数ペア:

[(1, 21725236480), (2, 10862618240), (4, 5431309120), (5, 4345047296), (8, 2715654560), (10, 2172523648), (16, 1357827280), (20, 1086261824), (31, 700814080), (32, 678913640), (40, 543130912), (62, 350407040), (64, 339456820), (80, 271565456), (124, 175203520), (128, 169728410), (155, 140162816), (160, 135782728), (248, 87601760), (256, 84864205), (310, 70081408), (320, 67891364), (496, 43800880), (601, 36148480), (620, 35040704), (640, 33945682), (911, 23847680), (992, 21900440), (1202, 18074240), (1240, 17520352), (1280, 16972841), (1822, 11923840), (1984, 10950220), (2404, 9037120), (2480, 8760176), (3005, 7229696), (3644, 5961920), (3968, 5475110), (4555, 4769536), (4808, 4518560), (4960, 4380088), (6010, 3614848), (7288, 2980960), (7936, 2737555), (9110, 2384768), (9616, 2259280), (9920, 2190044), (12020, 1807424), (14576, 1490480), (18220, 1192384), (18631, 1166080), (19232, 1129640), (19840, 1095022), (24040, 903712), (28241, 769280), (29152, 745240), (36440, 596192), (37262, 583040), (38464, 564820), (39680, 547511), (48080, 451856), (56482, 384640), (58304, 372620), (72880, 298096), (74524, 291520), (76928, 282410), (93155, 233216), (96160, 225928), (112964, 192320), (116608, 186310), (141205, 153856), (145760, 149048)]