81910680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{227}}^1$

素因数の和:369

約数の個数: 128

約数和(自身を含む): 257402880

約数和(自身を除く): 175492200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 97, 120, 124, 155, 186, 194, 227, 248, 291, 310, 372, 388, 454, 465, 485, 582, 620, 681, 744, 776, 908, 930, 970, 1135, 1164, 1240, 1362, 1455, 1816, 1860, 1940, 2270, 2328, 2724, 2910, 3007, 3405, 3720, 3880, 4540, 5448, 5820, 6014, 6810, 7037, 9021, 9080, 11640, 12028, 13620, 14074, 15035, 18042, 21111, 22019, 24056, 27240, 28148, 30070, 35185, 36084, 42222, 44038, 45105, 56296, 60140, 66057, 70370, 72168, 84444, 88076, 90210, 105555, 110095, 120280, 132114, 140740, 168888, 176152, 180420, 211110, 220190, 264228, 281480, 330285, 360840, 422220, 440380, 528456, 660570, 682589, 844440, 880760, 1321140, 1365178, 2047767, 2642280, 2730356, 3412945, 4095534, 5460712, 6825890, 8191068, 10238835, 13651780, 16382136, 20477670, 27303560, 40955340, 81910680]

約数ペア:

[(1, 81910680), (2, 40955340), (3, 27303560), (4, 20477670), (5, 16382136), (6, 13651780), (8, 10238835), (10, 8191068), (12, 6825890), (15, 5460712), (20, 4095534), (24, 3412945), (30, 2730356), (31, 2642280), (40, 2047767), (60, 1365178), (62, 1321140), (93, 880760), (97, 844440), (120, 682589), (124, 660570), (155, 528456), (186, 440380), (194, 422220), (227, 360840), (248, 330285), (291, 281480), (310, 264228), (372, 220190), (388, 211110), (454, 180420), (465, 176152), (485, 168888), (582, 140740), (620, 132114), (681, 120280), (744, 110095), (776, 105555), (908, 90210), (930, 88076), (970, 84444), (1135, 72168), (1164, 70370), (1240, 66057), (1362, 60140), (1455, 56296), (1816, 45105), (1860, 44038), (1940, 42222), (2270, 36084), (2328, 35185), (2724, 30070), (2910, 28148), (3007, 27240), (3405, 24056), (3720, 22019), (3880, 21111), (4540, 18042), (5448, 15035), (5820, 14074), (6014, 13620), (6810, 12028), (7037, 11640), (9021, 9080)]