28478520

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{3767}}^1$

素因数の和:3794

約数の個数: 128

約数和(自身を含む): 108518400

約数和(自身を除く): 80039880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3767, 3780, 7534, 7560, 11301, 15068, 18835, 22602, 26369, 30136, 33903, 37670, 45204, 52738, 56505, 67806, 75340, 79107, 90408, 101709, 105476, 113010, 131845, 135612, 150680, 158214, 169515, 203418, 210952, 226020, 237321, 263690, 271224, 316428, 339030, 395535, 406836, 452040, 474642, 508545, 527380, 632856, 678060, 711963, 791070, 813672, 949284, 1017090, 1054760, 1186605, 1356120, 1423926, 1582140, 1898568, 2034180, 2373210, 2847852, 3164280, 3559815, 4068360, 4746420, 5695704, 7119630, 9492840, 14239260, 28478520]

約数ペア:

[(1, 28478520), (2, 14239260), (3, 9492840), (4, 7119630), (5, 5695704), (6, 4746420), (7, 4068360), (8, 3559815), (9, 3164280), (10, 2847852), (12, 2373210), (14, 2034180), (15, 1898568), (18, 1582140), (20, 1423926), (21, 1356120), (24, 1186605), (27, 1054760), (28, 1017090), (30, 949284), (35, 813672), (36, 791070), (40, 711963), (42, 678060), (45, 632856), (54, 527380), (56, 508545), (60, 474642), (63, 452040), (70, 406836), (72, 395535), (84, 339030), (90, 316428), (105, 271224), (108, 263690), (120, 237321), (126, 226020), (135, 210952), (140, 203418), (168, 169515), (180, 158214), (189, 150680), (210, 135612), (216, 131845), (252, 113010), (270, 105476), (280, 101709), (315, 90408), (360, 79107), (378, 75340), (420, 67806), (504, 56505), (540, 52738), (630, 45204), (756, 37670), (840, 33903), (945, 30136), (1080, 26369), (1260, 22602), (1512, 18835), (1890, 15068), (2520, 11301), (3767, 7560), (3780, 7534)]