28857360

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:305

約数の個数: 160

約数和(自身を含む): 103921920

約数和(自身を除く): 75064560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 89, 105, 112, 120, 140, 168, 178, 193, 210, 240, 267, 280, 336, 356, 386, 420, 445, 534, 560, 579, 623, 712, 772, 840, 890, 965, 1068, 1158, 1246, 1335, 1351, 1424, 1544, 1680, 1780, 1869, 1930, 2136, 2316, 2492, 2670, 2702, 2895, 3088, 3115, 3560, 3738, 3860, 4053, 4272, 4632, 4984, 5340, 5404, 5790, 6230, 6755, 7120, 7476, 7720, 8106, 9264, 9345, 9968, 10680, 10808, 11580, 12460, 13510, 14952, 15440, 16212, 17177, 18690, 20265, 21360, 21616, 23160, 24920, 27020, 29904, 32424, 34354, 37380, 40530, 46320, 49840, 51531, 54040, 64848, 68708, 74760, 81060, 85885, 103062, 108080, 120239, 137416, 149520, 162120, 171770, 206124, 240478, 257655, 274832, 324240, 343540, 360717, 412248, 480956, 515310, 601195, 687080, 721434, 824496, 961912, 1030620, 1202390, 1374160, 1442868, 1803585, 1923824, 2061240, 2404780, 2885736, 3607170, 4122480, 4809560, 5771472, 7214340, 9619120, 14428680, 28857360]

約数ペア:

[(1, 28857360), (2, 14428680), (3, 9619120), (4, 7214340), (5, 5771472), (6, 4809560), (7, 4122480), (8, 3607170), (10, 2885736), (12, 2404780), (14, 2061240), (15, 1923824), (16, 1803585), (20, 1442868), (21, 1374160), (24, 1202390), (28, 1030620), (30, 961912), (35, 824496), (40, 721434), (42, 687080), (48, 601195), (56, 515310), (60, 480956), (70, 412248), (80, 360717), (84, 343540), (89, 324240), (105, 274832), (112, 257655), (120, 240478), (140, 206124), (168, 171770), (178, 162120), (193, 149520), (210, 137416), (240, 120239), (267, 108080), (280, 103062), (336, 85885), (356, 81060), (386, 74760), (420, 68708), (445, 64848), (534, 54040), (560, 51531), (579, 49840), (623, 46320), (712, 40530), (772, 37380), (840, 34354), (890, 32424), (965, 29904), (1068, 27020), (1158, 24920), (1246, 23160), (1335, 21616), (1351, 21360), (1424, 20265), (1544, 18690), (1680, 17177), (1780, 16212), (1869, 15440), (1930, 14952), (2136, 13510), (2316, 12460), (2492, 11580), (2670, 10808), (2702, 10680), (2895, 9968), (3088, 9345), (3115, 9264), (3560, 8106), (3738, 7720), (3860, 7476), (4053, 7120), (4272, 6755), (4632, 6230), (4984, 5790), (5340, 5404)]