261479664

素因数分解:

$2^4\times 3^5\times {\mathrm{109}}^1\times {\mathrm{617}}^1$

素因数の和:749

約数の個数: 120

約数和(自身を含む): 767086320

約数和(自身を除く): 505606656

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 109, 144, 162, 216, 218, 243, 324, 327, 432, 436, 486, 617, 648, 654, 872, 972, 981, 1234, 1296, 1308, 1744, 1851, 1944, 1962, 2468, 2616, 2943, 3702, 3888, 3924, 4936, 5232, 5553, 5886, 7404, 7848, 8829, 9872, 11106, 11772, 14808, 15696, 16659, 17658, 22212, 23544, 26487, 29616, 33318, 35316, 44424, 47088, 49977, 52974, 66636, 67253, 70632, 88848, 99954, 105948, 133272, 134506, 141264, 149931, 199908, 201759, 211896, 266544, 269012, 299862, 399816, 403518, 423792, 538024, 599724, 605277, 799632, 807036, 1076048, 1199448, 1210554, 1614072, 1815831, 2398896, 2421108, 3228144, 3631662, 4842216, 5447493, 7263324, 9684432, 10894986, 14526648, 16342479, 21789972, 29053296, 32684958, 43579944, 65369916, 87159888, 130739832, 261479664]

約数ペア:

[(1, 261479664), (2, 130739832), (3, 87159888), (4, 65369916), (6, 43579944), (8, 32684958), (9, 29053296), (12, 21789972), (16, 16342479), (18, 14526648), (24, 10894986), (27, 9684432), (36, 7263324), (48, 5447493), (54, 4842216), (72, 3631662), (81, 3228144), (108, 2421108), (109, 2398896), (144, 1815831), (162, 1614072), (216, 1210554), (218, 1199448), (243, 1076048), (324, 807036), (327, 799632), (432, 605277), (436, 599724), (486, 538024), (617, 423792), (648, 403518), (654, 399816), (872, 299862), (972, 269012), (981, 266544), (1234, 211896), (1296, 201759), (1308, 199908), (1744, 149931), (1851, 141264), (1944, 134506), (1962, 133272), (2468, 105948), (2616, 99954), (2943, 88848), (3702, 70632), (3888, 67253), (3924, 66636), (4936, 52974), (5232, 49977), (5553, 47088), (5886, 44424), (7404, 35316), (7848, 33318), (8829, 29616), (9872, 26487), (11106, 23544), (11772, 22212), (14808, 17658), (15696, 16659)]