81362820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1601}}^1$

素因数の和:1642

約数の個数: 144

約数和(自身を含む): 286360704

約数和(自身を除く): 204997884

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 121, 132, 140, 154, 165, 210, 220, 231, 242, 308, 330, 363, 385, 420, 462, 484, 605, 660, 726, 770, 847, 924, 1155, 1210, 1452, 1540, 1601, 1694, 1815, 2310, 2420, 2541, 3202, 3388, 3630, 4235, 4620, 4803, 5082, 6404, 7260, 8005, 8470, 9606, 10164, 11207, 12705, 16010, 16940, 17611, 19212, 22414, 24015, 25410, 32020, 33621, 35222, 44828, 48030, 50820, 52833, 56035, 67242, 70444, 88055, 96060, 105666, 112070, 123277, 134484, 168105, 176110, 193721, 211332, 224140, 246554, 264165, 336210, 352220, 369831, 387442, 493108, 528330, 581163, 616385, 672420, 739662, 774884, 968605, 1056660, 1162326, 1232770, 1356047, 1479324, 1849155, 1937210, 2324652, 2465540, 2712094, 2905815, 3698310, 3874420, 4068141, 5424188, 5811630, 6780235, 7396620, 8136282, 11623260, 13560470, 16272564, 20340705, 27120940, 40681410, 81362820]

約数ペア:

[(1, 81362820), (2, 40681410), (3, 27120940), (4, 20340705), (5, 16272564), (6, 13560470), (7, 11623260), (10, 8136282), (11, 7396620), (12, 6780235), (14, 5811630), (15, 5424188), (20, 4068141), (21, 3874420), (22, 3698310), (28, 2905815), (30, 2712094), (33, 2465540), (35, 2324652), (42, 1937210), (44, 1849155), (55, 1479324), (60, 1356047), (66, 1232770), (70, 1162326), (77, 1056660), (84, 968605), (105, 774884), (110, 739662), (121, 672420), (132, 616385), (140, 581163), (154, 528330), (165, 493108), (210, 387442), (220, 369831), (231, 352220), (242, 336210), (308, 264165), (330, 246554), (363, 224140), (385, 211332), (420, 193721), (462, 176110), (484, 168105), (605, 134484), (660, 123277), (726, 112070), (770, 105666), (847, 96060), (924, 88055), (1155, 70444), (1210, 67242), (1452, 56035), (1540, 52833), (1601, 50820), (1694, 48030), (1815, 44828), (2310, 35222), (2420, 33621), (2541, 32020), (3202, 25410), (3388, 24015), (3630, 22414), (4235, 19212), (4620, 17611), (4803, 16940), (5082, 16010), (6404, 12705), (7260, 11207), (8005, 10164), (8470, 9606)]