280663740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{7681}}^1$

素因数の和:7732

約数の個数: 144

約数和(自身を含む): 1006649280

約数和(自身を除く): 725985540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 29, 30, 35, 36, 42, 45, 58, 60, 63, 70, 84, 87, 90, 105, 116, 126, 140, 145, 174, 180, 203, 210, 252, 261, 290, 315, 348, 406, 420, 435, 522, 580, 609, 630, 812, 870, 1015, 1044, 1218, 1260, 1305, 1740, 1827, 2030, 2436, 2610, 3045, 3654, 4060, 5220, 6090, 7308, 7681, 9135, 12180, 15362, 18270, 23043, 30724, 36540, 38405, 46086, 53767, 69129, 76810, 92172, 107534, 115215, 138258, 153620, 161301, 215068, 222749, 230430, 268835, 276516, 322602, 345645, 445498, 460860, 483903, 537670, 645204, 668247, 691290, 806505, 890996, 967806, 1075340, 1113745, 1336494, 1382580, 1559243, 1613010, 1935612, 2004741, 2227490, 2419515, 2672988, 3118486, 3226020, 3341235, 4009482, 4454980, 4677729, 4839030, 6236972, 6682470, 7796215, 8018964, 9355458, 9678060, 10023705, 13364940, 14033187, 15592430, 18710916, 20047410, 23388645, 28066374, 31184860, 40094820, 46777290, 56132748, 70165935, 93554580, 140331870, 280663740]

約数ペア:

[(1, 280663740), (2, 140331870), (3, 93554580), (4, 70165935), (5, 56132748), (6, 46777290), (7, 40094820), (9, 31184860), (10, 28066374), (12, 23388645), (14, 20047410), (15, 18710916), (18, 15592430), (20, 14033187), (21, 13364940), (28, 10023705), (29, 9678060), (30, 9355458), (35, 8018964), (36, 7796215), (42, 6682470), (45, 6236972), (58, 4839030), (60, 4677729), (63, 4454980), (70, 4009482), (84, 3341235), (87, 3226020), (90, 3118486), (105, 2672988), (116, 2419515), (126, 2227490), (140, 2004741), (145, 1935612), (174, 1613010), (180, 1559243), (203, 1382580), (210, 1336494), (252, 1113745), (261, 1075340), (290, 967806), (315, 890996), (348, 806505), (406, 691290), (420, 668247), (435, 645204), (522, 537670), (580, 483903), (609, 460860), (630, 445498), (812, 345645), (870, 322602), (1015, 276516), (1044, 268835), (1218, 230430), (1260, 222749), (1305, 215068), (1740, 161301), (1827, 153620), (2030, 138258), (2436, 115215), (2610, 107534), (3045, 92172), (3654, 76810), (4060, 69129), (5220, 53767), (6090, 46086), (7308, 38405), (7681, 36540), (9135, 30724), (12180, 23043), (15362, 18270)]