20012928

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:260

約数の個数: 128

約数和(自身を含む): 60547200

約数和(自身を除く): 40534272

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 32, 38, 39, 48, 52, 57, 64, 76, 78, 96, 104, 114, 128, 152, 156, 192, 208, 211, 228, 247, 304, 312, 384, 416, 422, 456, 494, 608, 624, 633, 741, 832, 844, 912, 988, 1216, 1248, 1266, 1482, 1664, 1688, 1824, 1976, 2432, 2496, 2532, 2743, 2964, 3376, 3648, 3952, 4009, 4992, 5064, 5486, 5928, 6752, 7296, 7904, 8018, 8229, 10128, 10972, 11856, 12027, 13504, 15808, 16036, 16458, 20256, 21944, 23712, 24054, 27008, 31616, 32072, 32916, 40512, 43888, 47424, 48108, 52117, 64144, 65832, 81024, 87776, 94848, 96216, 104234, 128288, 131664, 156351, 175552, 192432, 208468, 256576, 263328, 312702, 351104, 384864, 416936, 513152, 526656, 625404, 769728, 833872, 1053312, 1250808, 1539456, 1667744, 2501616, 3335488, 5003232, 6670976, 10006464, 20012928]

約数ペア:

[(1, 20012928), (2, 10006464), (3, 6670976), (4, 5003232), (6, 3335488), (8, 2501616), (12, 1667744), (13, 1539456), (16, 1250808), (19, 1053312), (24, 833872), (26, 769728), (32, 625404), (38, 526656), (39, 513152), (48, 416936), (52, 384864), (57, 351104), (64, 312702), (76, 263328), (78, 256576), (96, 208468), (104, 192432), (114, 175552), (128, 156351), (152, 131664), (156, 128288), (192, 104234), (208, 96216), (211, 94848), (228, 87776), (247, 81024), (304, 65832), (312, 64144), (384, 52117), (416, 48108), (422, 47424), (456, 43888), (494, 40512), (608, 32916), (624, 32072), (633, 31616), (741, 27008), (832, 24054), (844, 23712), (912, 21944), (988, 20256), (1216, 16458), (1248, 16036), (1266, 15808), (1482, 13504), (1664, 12027), (1688, 11856), (1824, 10972), (1976, 10128), (2432, 8229), (2496, 8018), (2532, 7904), (2743, 7296), (2964, 6752), (3376, 5928), (3648, 5486), (3952, 5064), (4009, 4992)]