208540472

素因数分解:

$2^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{131}}^2$

素因数の和:313

約数の個数: 72

約数和(自身を含む): 473136480

約数和(自身を除く): 264596008

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 49, 56, 62, 98, 124, 131, 196, 217, 248, 262, 392, 434, 524, 868, 917, 1048, 1519, 1736, 1834, 3038, 3668, 4061, 6076, 6419, 7336, 8122, 12152, 12838, 16244, 17161, 25676, 28427, 32488, 34322, 51352, 56854, 68644, 113708, 120127, 137288, 198989, 227416, 240254, 397978, 480508, 531991, 795956, 840889, 961016, 1063982, 1591912, 1681778, 2127964, 3363556, 3723937, 4255928, 6727112, 7447874, 14895748, 26067559, 29791496, 52135118, 104270236, 208540472]

約数ペア:

[(1, 208540472), (2, 104270236), (4, 52135118), (7, 29791496), (8, 26067559), (14, 14895748), (28, 7447874), (31, 6727112), (49, 4255928), (56, 3723937), (62, 3363556), (98, 2127964), (124, 1681778), (131, 1591912), (196, 1063982), (217, 961016), (248, 840889), (262, 795956), (392, 531991), (434, 480508), (524, 397978), (868, 240254), (917, 227416), (1048, 198989), (1519, 137288), (1736, 120127), (1834, 113708), (3038, 68644), (3668, 56854), (4061, 51352), (6076, 34322), (6419, 32488), (7336, 28427), (8122, 25676), (12152, 17161), (12838, 16244)]