261649152

素因数分解:

$2^8\times 3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:223

約数の個数: 216

約数和(自身を含む): 818417600

約数和(自身を除く): 556768448

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 32, 36, 38, 43, 48, 57, 64, 72, 76, 86, 96, 114, 128, 129, 139, 144, 152, 171, 172, 192, 228, 256, 258, 278, 288, 304, 342, 344, 384, 387, 417, 456, 516, 556, 576, 608, 684, 688, 768, 774, 817, 834, 912, 1032, 1112, 1152, 1216, 1251, 1368, 1376, 1548, 1634, 1668, 1824, 2064, 2224, 2304, 2432, 2451, 2502, 2641, 2736, 2752, 3096, 3268, 3336, 3648, 4128, 4448, 4864, 4902, 5004, 5282, 5472, 5504, 5977, 6192, 6536, 6672, 7296, 7353, 7923, 8256, 8896, 9804, 10008, 10564, 10944, 11008, 11954, 12384, 13072, 13344, 14592, 14706, 15846, 16512, 17792, 17931, 19608, 20016, 21128, 21888, 23769, 23908, 24768, 26144, 26688, 29412, 31692, 33024, 35584, 35862, 39216, 40032, 42256, 43776, 47538, 47816, 49536, 52288, 53376, 53793, 58824, 63384, 71724, 78432, 80064, 84512, 95076, 95632, 99072, 104576, 106752, 107586, 113563, 117648, 126768, 143448, 156864, 160128, 169024, 190152, 191264, 209152, 215172, 227126, 235296, 253536, 286896, 313728, 320256, 338048, 340689, 380304, 382528, 430344, 454252, 470592, 507072, 573792, 627456, 676096, 681378, 760608, 765056, 860688, 908504, 941184, 1014144, 1022067, 1147584, 1362756, 1521216, 1530112, 1721376, 1817008, 1882368, 2028288, 2044134, 2295168, 2725512, 3042432, 3442752, 3634016, 4088268, 4590336, 5451024, 6084864, 6885504, 7268032, 8176536, 10902048, 13771008, 14536064, 16353072, 21804096, 29072128, 32706144, 43608192, 65412288, 87216384, 130824576, 261649152]

約数ペア:

[(1, 261649152), (2, 130824576), (3, 87216384), (4, 65412288), (6, 43608192), (8, 32706144), (9, 29072128), (12, 21804096), (16, 16353072), (18, 14536064), (19, 13771008), (24, 10902048), (32, 8176536), (36, 7268032), (38, 6885504), (43, 6084864), (48, 5451024), (57, 4590336), (64, 4088268), (72, 3634016), (76, 3442752), (86, 3042432), (96, 2725512), (114, 2295168), (128, 2044134), (129, 2028288), (139, 1882368), (144, 1817008), (152, 1721376), (171, 1530112), (172, 1521216), (192, 1362756), (228, 1147584), (256, 1022067), (258, 1014144), (278, 941184), (288, 908504), (304, 860688), (342, 765056), (344, 760608), (384, 681378), (387, 676096), (417, 627456), (456, 573792), (516, 507072), (556, 470592), (576, 454252), (608, 430344), (684, 382528), (688, 380304), (768, 340689), (774, 338048), (817, 320256), (834, 313728), (912, 286896), (1032, 253536), (1112, 235296), (1152, 227126), (1216, 215172), (1251, 209152), (1368, 191264), (1376, 190152), (1548, 169024), (1634, 160128), (1668, 156864), (1824, 143448), (2064, 126768), (2224, 117648), (2304, 113563), (2432, 107586), (2451, 106752), (2502, 104576), (2641, 99072), (2736, 95632), (2752, 95076), (3096, 84512), (3268, 80064), (3336, 78432), (3648, 71724), (4128, 63384), (4448, 58824), (4864, 53793), (4902, 53376), (5004, 52288), (5282, 49536), (5472, 47816), (5504, 47538), (5977, 43776), (6192, 42256), (6536, 40032), (6672, 39216), (7296, 35862), (7353, 35584), (7923, 33024), (8256, 31692), (8896, 29412), (9804, 26688), (10008, 26144), (10564, 24768), (10944, 23908), (11008, 23769), (11954, 21888), (12384, 21128), (13072, 20016), (13344, 19608), (14592, 17931), (14706, 17792), (15846, 16512)]