20947080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2267}}^1$

素因数の和:2299

約数の個数: 128

約数和(自身を含む): 78382080

約数和(自身を除く): 57435000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2267, 2310, 3080, 4534, 4620, 6801, 9068, 9240, 11335, 13602, 15869, 18136, 22670, 24937, 27204, 31738, 34005, 45340, 47607, 49874, 54408, 63476, 68010, 74811, 79345, 90680, 95214, 99748, 124685, 126952, 136020, 149622, 158690, 174559, 190428, 199496, 238035, 249370, 272040, 299244, 317380, 349118, 374055, 380856, 476070, 498740, 523677, 598488, 634760, 698236, 748110, 872795, 952140, 997480, 1047354, 1396472, 1496220, 1745590, 1904280, 2094708, 2618385, 2992440, 3491180, 4189416, 5236770, 6982360, 10473540, 20947080]

約数ペア:

[(1, 20947080), (2, 10473540), (3, 6982360), (4, 5236770), (5, 4189416), (6, 3491180), (7, 2992440), (8, 2618385), (10, 2094708), (11, 1904280), (12, 1745590), (14, 1496220), (15, 1396472), (20, 1047354), (21, 997480), (22, 952140), (24, 872795), (28, 748110), (30, 698236), (33, 634760), (35, 598488), (40, 523677), (42, 498740), (44, 476070), (55, 380856), (56, 374055), (60, 349118), (66, 317380), (70, 299244), (77, 272040), (84, 249370), (88, 238035), (105, 199496), (110, 190428), (120, 174559), (132, 158690), (140, 149622), (154, 136020), (165, 126952), (168, 124685), (210, 99748), (220, 95214), (231, 90680), (264, 79345), (280, 74811), (308, 68010), (330, 63476), (385, 54408), (420, 49874), (440, 47607), (462, 45340), (616, 34005), (660, 31738), (770, 27204), (840, 24937), (924, 22670), (1155, 18136), (1320, 15869), (1540, 13602), (1848, 11335), (2267, 9240), (2310, 9068), (3080, 6801), (4534, 4620)]