205123590

素因数分解:

$2^1\times 3^5\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:449

約数の個数: 192

約数和(自身を含む): 654151680

約数和(自身を除く): 449028090

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 31, 35, 42, 45, 54, 62, 63, 70, 81, 90, 93, 105, 126, 135, 155, 162, 186, 189, 210, 217, 243, 270, 279, 310, 315, 378, 389, 405, 434, 465, 486, 558, 567, 630, 651, 778, 810, 837, 930, 945, 1085, 1134, 1167, 1215, 1302, 1395, 1674, 1701, 1890, 1945, 1953, 2170, 2334, 2430, 2511, 2723, 2790, 2835, 3255, 3402, 3501, 3890, 3906, 4185, 5022, 5446, 5670, 5835, 5859, 6510, 7002, 7533, 8169, 8370, 8505, 9765, 10503, 11670, 11718, 12059, 12555, 13615, 15066, 16338, 17010, 17505, 17577, 19530, 21006, 24118, 24507, 25110, 27230, 29295, 31509, 35010, 35154, 36177, 37665, 40845, 49014, 52515, 52731, 58590, 60295, 63018, 72354, 73521, 75330, 81690, 84413, 87885, 94527, 105030, 105462, 108531, 120590, 122535, 147042, 157545, 168826, 175770, 180885, 189054, 217062, 220563, 245070, 253239, 263655, 315090, 325593, 361770, 367605, 422065, 441126, 472635, 506478, 527310, 542655, 651186, 661689, 735210, 759717, 844130, 945270, 976779, 1085310, 1102815, 1266195, 1323378, 1519434, 1627965, 1953558, 2205630, 2279151, 2532390, 2930337, 3255930, 3308445, 3798585, 4558302, 4883895, 5860674, 6616890, 6837453, 7597170, 9767790, 11395755, 13674906, 14651685, 20512359, 22791510, 29303370, 34187265, 41024718, 68374530, 102561795, 205123590]

約数ペア:

[(1, 205123590), (2, 102561795), (3, 68374530), (5, 41024718), (6, 34187265), (7, 29303370), (9, 22791510), (10, 20512359), (14, 14651685), (15, 13674906), (18, 11395755), (21, 9767790), (27, 7597170), (30, 6837453), (31, 6616890), (35, 5860674), (42, 4883895), (45, 4558302), (54, 3798585), (62, 3308445), (63, 3255930), (70, 2930337), (81, 2532390), (90, 2279151), (93, 2205630), (105, 1953558), (126, 1627965), (135, 1519434), (155, 1323378), (162, 1266195), (186, 1102815), (189, 1085310), (210, 976779), (217, 945270), (243, 844130), (270, 759717), (279, 735210), (310, 661689), (315, 651186), (378, 542655), (389, 527310), (405, 506478), (434, 472635), (465, 441126), (486, 422065), (558, 367605), (567, 361770), (630, 325593), (651, 315090), (778, 263655), (810, 253239), (837, 245070), (930, 220563), (945, 217062), (1085, 189054), (1134, 180885), (1167, 175770), (1215, 168826), (1302, 157545), (1395, 147042), (1674, 122535), (1701, 120590), (1890, 108531), (1945, 105462), (1953, 105030), (2170, 94527), (2334, 87885), (2430, 84413), (2511, 81690), (2723, 75330), (2790, 73521), (2835, 72354), (3255, 63018), (3402, 60295), (3501, 58590), (3890, 52731), (3906, 52515), (4185, 49014), (5022, 40845), (5446, 37665), (5670, 36177), (5835, 35154), (5859, 35010), (6510, 31509), (7002, 29295), (7533, 27230), (8169, 25110), (8370, 24507), (8505, 24118), (9765, 21006), (10503, 19530), (11670, 17577), (11718, 17505), (12059, 17010), (12555, 16338), (13615, 15066)]