261517984

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2897}}^1$

素因数の和:2958

約数の個数: 96

約数和(自身を含む): 654345216

約数和(自身を除く): 392827232

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 32, 52, 56, 62, 91, 104, 112, 124, 182, 208, 217, 224, 248, 364, 403, 416, 434, 496, 728, 806, 868, 992, 1456, 1612, 1736, 2821, 2897, 2912, 3224, 3472, 5642, 5794, 6448, 6944, 11284, 11588, 12896, 20279, 22568, 23176, 37661, 40558, 45136, 46352, 75322, 81116, 89807, 90272, 92704, 150644, 162232, 179614, 263627, 301288, 324464, 359228, 527254, 602576, 628649, 648928, 718456, 1054508, 1167491, 1205152, 1257298, 1436912, 2109016, 2334982, 2514596, 2873824, 4218032, 4669964, 5029192, 8172437, 8436064, 9339928, 10058384, 16344874, 18679856, 20116768, 32689748, 37359712, 65379496, 130758992, 261517984]

約数ペア:

[(1, 261517984), (2, 130758992), (4, 65379496), (7, 37359712), (8, 32689748), (13, 20116768), (14, 18679856), (16, 16344874), (26, 10058384), (28, 9339928), (31, 8436064), (32, 8172437), (52, 5029192), (56, 4669964), (62, 4218032), (91, 2873824), (104, 2514596), (112, 2334982), (124, 2109016), (182, 1436912), (208, 1257298), (217, 1205152), (224, 1167491), (248, 1054508), (364, 718456), (403, 648928), (416, 628649), (434, 602576), (496, 527254), (728, 359228), (806, 324464), (868, 301288), (992, 263627), (1456, 179614), (1612, 162232), (1736, 150644), (2821, 92704), (2897, 90272), (2912, 89807), (3224, 81116), (3472, 75322), (5642, 46352), (5794, 45136), (6448, 40558), (6944, 37661), (11284, 23176), (11588, 22568), (12896, 20279)]