20856264

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:195

約数の個数: 128

約数和(自身を含む): 62899200

約数和(自身を除く): 42042936

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 22, 24, 26, 33, 39, 44, 52, 59, 66, 78, 88, 103, 104, 118, 132, 143, 156, 177, 206, 236, 264, 286, 309, 312, 354, 412, 429, 472, 572, 618, 649, 708, 767, 824, 858, 1133, 1144, 1236, 1298, 1339, 1416, 1534, 1716, 1947, 2266, 2301, 2472, 2596, 2678, 3068, 3399, 3432, 3894, 4017, 4532, 4602, 5192, 5356, 6077, 6136, 6798, 7788, 8034, 8437, 9064, 9204, 10712, 12154, 13596, 14729, 15576, 16068, 16874, 18231, 18408, 24308, 25311, 27192, 29458, 32136, 33748, 36462, 44187, 48616, 50622, 58916, 66847, 67496, 72924, 79001, 88374, 101244, 117832, 133694, 145848, 158002, 176748, 200541, 202488, 237003, 267388, 316004, 353496, 401082, 474006, 534776, 632008, 802164, 869011, 948012, 1604328, 1738022, 1896024, 2607033, 3476044, 5214066, 6952088, 10428132, 20856264]

約数ペア:

[(1, 20856264), (2, 10428132), (3, 6952088), (4, 5214066), (6, 3476044), (8, 2607033), (11, 1896024), (12, 1738022), (13, 1604328), (22, 948012), (24, 869011), (26, 802164), (33, 632008), (39, 534776), (44, 474006), (52, 401082), (59, 353496), (66, 316004), (78, 267388), (88, 237003), (103, 202488), (104, 200541), (118, 176748), (132, 158002), (143, 145848), (156, 133694), (177, 117832), (206, 101244), (236, 88374), (264, 79001), (286, 72924), (309, 67496), (312, 66847), (354, 58916), (412, 50622), (429, 48616), (472, 44187), (572, 36462), (618, 33748), (649, 32136), (708, 29458), (767, 27192), (824, 25311), (858, 24308), (1133, 18408), (1144, 18231), (1236, 16874), (1298, 16068), (1339, 15576), (1416, 14729), (1534, 13596), (1716, 12154), (1947, 10712), (2266, 9204), (2301, 9064), (2472, 8437), (2596, 8034), (2678, 7788), (3068, 6798), (3399, 6136), (3432, 6077), (3894, 5356), (4017, 5192), (4532, 4602)]