20451288

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:193

約数の個数: 128

約数和(自身を含む): 61689600

約数和(自身を除く): 41238312

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 22, 24, 26, 33, 39, 44, 52, 59, 66, 78, 88, 101, 104, 118, 132, 143, 156, 177, 202, 236, 264, 286, 303, 312, 354, 404, 429, 472, 572, 606, 649, 708, 767, 808, 858, 1111, 1144, 1212, 1298, 1313, 1416, 1534, 1716, 1947, 2222, 2301, 2424, 2596, 2626, 3068, 3333, 3432, 3894, 3939, 4444, 4602, 5192, 5252, 5959, 6136, 6666, 7788, 7878, 8437, 8888, 9204, 10504, 11918, 13332, 14443, 15576, 15756, 16874, 17877, 18408, 23836, 25311, 26664, 28886, 31512, 33748, 35754, 43329, 47672, 50622, 57772, 65549, 67496, 71508, 77467, 86658, 101244, 115544, 131098, 143016, 154934, 173316, 196647, 202488, 232401, 262196, 309868, 346632, 393294, 464802, 524392, 619736, 786588, 852137, 929604, 1573176, 1704274, 1859208, 2556411, 3408548, 5112822, 6817096, 10225644, 20451288]

約数ペア:

[(1, 20451288), (2, 10225644), (3, 6817096), (4, 5112822), (6, 3408548), (8, 2556411), (11, 1859208), (12, 1704274), (13, 1573176), (22, 929604), (24, 852137), (26, 786588), (33, 619736), (39, 524392), (44, 464802), (52, 393294), (59, 346632), (66, 309868), (78, 262196), (88, 232401), (101, 202488), (104, 196647), (118, 173316), (132, 154934), (143, 143016), (156, 131098), (177, 115544), (202, 101244), (236, 86658), (264, 77467), (286, 71508), (303, 67496), (312, 65549), (354, 57772), (404, 50622), (429, 47672), (472, 43329), (572, 35754), (606, 33748), (649, 31512), (708, 28886), (767, 26664), (808, 25311), (858, 23836), (1111, 18408), (1144, 17877), (1212, 16874), (1298, 15756), (1313, 15576), (1416, 14443), (1534, 13332), (1716, 11918), (1947, 10504), (2222, 9204), (2301, 8888), (2424, 8437), (2596, 7878), (2626, 7788), (3068, 6666), (3333, 6136), (3432, 5959), (3894, 5252), (3939, 5192), (4444, 4602)]