20587728

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{863}}^1$

素因数の和:952

約数の個数: 80

約数和(自身を含む): 61710336

約数和(自身を除く): 41122608

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 71, 84, 112, 142, 168, 213, 284, 336, 426, 497, 568, 852, 863, 994, 1136, 1491, 1704, 1726, 1988, 2589, 2982, 3408, 3452, 3976, 5178, 5964, 6041, 6904, 7952, 10356, 11928, 12082, 13808, 18123, 20712, 23856, 24164, 36246, 41424, 48328, 61273, 72492, 96656, 122546, 144984, 183819, 245092, 289968, 367638, 428911, 490184, 735276, 857822, 980368, 1286733, 1470552, 1715644, 2573466, 2941104, 3431288, 5146932, 6862576, 10293864, 20587728]

約数ペア:

[(1, 20587728), (2, 10293864), (3, 6862576), (4, 5146932), (6, 3431288), (7, 2941104), (8, 2573466), (12, 1715644), (14, 1470552), (16, 1286733), (21, 980368), (24, 857822), (28, 735276), (42, 490184), (48, 428911), (56, 367638), (71, 289968), (84, 245092), (112, 183819), (142, 144984), (168, 122546), (213, 96656), (284, 72492), (336, 61273), (426, 48328), (497, 41424), (568, 36246), (852, 24164), (863, 23856), (994, 20712), (1136, 18123), (1491, 13808), (1704, 12082), (1726, 11928), (1988, 10356), (2589, 7952), (2982, 6904), (3408, 6041), (3452, 5964), (3976, 5178)]