20408808

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:175

約数の個数: 128

約数和(自身を含む): 62208000

約数和(自身を除く): 41799192

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 29, 42, 56, 58, 59, 71, 84, 87, 116, 118, 142, 168, 174, 177, 203, 213, 232, 236, 284, 348, 354, 406, 413, 426, 472, 497, 568, 609, 696, 708, 812, 826, 852, 994, 1218, 1239, 1416, 1491, 1624, 1652, 1704, 1711, 1988, 2059, 2436, 2478, 2982, 3304, 3422, 3976, 4118, 4189, 4872, 4956, 5133, 5964, 6177, 6844, 8236, 8378, 9912, 10266, 11928, 11977, 12354, 12567, 13688, 14413, 16472, 16756, 20532, 23954, 24708, 25134, 28826, 29323, 33512, 35931, 41064, 43239, 47908, 49416, 50268, 57652, 58646, 71862, 86478, 87969, 95816, 100536, 115304, 117292, 121481, 143724, 172956, 175938, 234584, 242962, 287448, 345912, 351876, 364443, 485924, 703752, 728886, 850367, 971848, 1457772, 1700734, 2551101, 2915544, 3401468, 5102202, 6802936, 10204404, 20408808]

約数ペア:

[(1, 20408808), (2, 10204404), (3, 6802936), (4, 5102202), (6, 3401468), (7, 2915544), (8, 2551101), (12, 1700734), (14, 1457772), (21, 971848), (24, 850367), (28, 728886), (29, 703752), (42, 485924), (56, 364443), (58, 351876), (59, 345912), (71, 287448), (84, 242962), (87, 234584), (116, 175938), (118, 172956), (142, 143724), (168, 121481), (174, 117292), (177, 115304), (203, 100536), (213, 95816), (232, 87969), (236, 86478), (284, 71862), (348, 58646), (354, 57652), (406, 50268), (413, 49416), (426, 47908), (472, 43239), (497, 41064), (568, 35931), (609, 33512), (696, 29323), (708, 28826), (812, 25134), (826, 24708), (852, 23954), (994, 20532), (1218, 16756), (1239, 16472), (1416, 14413), (1491, 13688), (1624, 12567), (1652, 12354), (1704, 11977), (1711, 11928), (1988, 10266), (2059, 9912), (2436, 8378), (2478, 8236), (2982, 6844), (3304, 6177), (3422, 5964), (3976, 5133), (4118, 4956), (4189, 4872)]