261307620

素因数分解:

$2^2\times 3^5\times 5^1\times 7^1\times {\mathrm{7681}}^1$

素因数の和:7712

約数の個数: 144

約数和(自身を含む): 939539328

約数和(自身を除く): 678231708

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 243, 252, 270, 315, 324, 378, 405, 420, 486, 540, 567, 630, 756, 810, 945, 972, 1134, 1215, 1260, 1620, 1701, 1890, 2268, 2430, 2835, 3402, 3780, 4860, 5670, 6804, 7681, 8505, 11340, 15362, 17010, 23043, 30724, 34020, 38405, 46086, 53767, 69129, 76810, 92172, 107534, 115215, 138258, 153620, 161301, 207387, 215068, 230430, 268835, 276516, 322602, 345645, 414774, 460860, 483903, 537670, 622161, 645204, 691290, 806505, 829548, 967806, 1036935, 1075340, 1244322, 1382580, 1451709, 1613010, 1866483, 1935612, 2073870, 2419515, 2488644, 2903418, 3110805, 3226020, 3732966, 4147740, 4355127, 4839030, 5806836, 6221610, 7258545, 7465932, 8710254, 9332415, 9678060, 12443220, 13065381, 14517090, 17420508, 18664830, 21775635, 26130762, 29034180, 37329660, 43551270, 52261524, 65326905, 87102540, 130653810, 261307620]

約数ペア:

[(1, 261307620), (2, 130653810), (3, 87102540), (4, 65326905), (5, 52261524), (6, 43551270), (7, 37329660), (9, 29034180), (10, 26130762), (12, 21775635), (14, 18664830), (15, 17420508), (18, 14517090), (20, 13065381), (21, 12443220), (27, 9678060), (28, 9332415), (30, 8710254), (35, 7465932), (36, 7258545), (42, 6221610), (45, 5806836), (54, 4839030), (60, 4355127), (63, 4147740), (70, 3732966), (81, 3226020), (84, 3110805), (90, 2903418), (105, 2488644), (108, 2419515), (126, 2073870), (135, 1935612), (140, 1866483), (162, 1613010), (180, 1451709), (189, 1382580), (210, 1244322), (243, 1075340), (252, 1036935), (270, 967806), (315, 829548), (324, 806505), (378, 691290), (405, 645204), (420, 622161), (486, 537670), (540, 483903), (567, 460860), (630, 414774), (756, 345645), (810, 322602), (945, 276516), (972, 268835), (1134, 230430), (1215, 215068), (1260, 207387), (1620, 161301), (1701, 153620), (1890, 138258), (2268, 115215), (2430, 107534), (2835, 92172), (3402, 76810), (3780, 69129), (4860, 53767), (5670, 46086), (6804, 38405), (7681, 34020), (8505, 30724), (11340, 23043), (15362, 17010)]