261939496

素因数分解:

$2^3\times 7^4\times {\mathrm{13}}^1\times {\mathrm{1049}}^1$

素因数の和:1096

約数の個数: 80

約数和(自身を含む): 617620500

約数和(自身を除く): 355681004

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 343, 364, 392, 637, 686, 728, 1049, 1274, 1372, 2098, 2401, 2548, 2744, 4196, 4459, 4802, 5096, 7343, 8392, 8918, 9604, 13637, 14686, 17836, 19208, 27274, 29372, 31213, 35672, 51401, 54548, 58744, 62426, 95459, 102802, 109096, 124852, 190918, 205604, 249704, 359807, 381836, 411208, 668213, 719614, 763672, 1336426, 1439228, 2518649, 2672852, 2878456, 4677491, 5037298, 5345704, 9354982, 10074596, 18709964, 20149192, 32742437, 37419928, 65484874, 130969748, 261939496]

約数ペア:

[(1, 261939496), (2, 130969748), (4, 65484874), (7, 37419928), (8, 32742437), (13, 20149192), (14, 18709964), (26, 10074596), (28, 9354982), (49, 5345704), (52, 5037298), (56, 4677491), (91, 2878456), (98, 2672852), (104, 2518649), (182, 1439228), (196, 1336426), (343, 763672), (364, 719614), (392, 668213), (637, 411208), (686, 381836), (728, 359807), (1049, 249704), (1274, 205604), (1372, 190918), (2098, 124852), (2401, 109096), (2548, 102802), (2744, 95459), (4196, 62426), (4459, 58744), (4802, 54548), (5096, 51401), (7343, 35672), (8392, 31213), (8918, 29372), (9604, 27274), (13637, 19208), (14686, 17836)]