256989672

素因数分解:

$2^3\times 3^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1$

素因数の和:485

約数の個数: 160

約数和(自身を含む): 770489280

約数和(自身を除く): 513499608

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 27, 36, 43, 46, 54, 69, 72, 81, 86, 92, 108, 129, 138, 162, 172, 184, 207, 216, 258, 276, 324, 344, 387, 401, 414, 516, 552, 621, 648, 774, 802, 828, 989, 1032, 1161, 1203, 1242, 1548, 1604, 1656, 1863, 1978, 2322, 2406, 2484, 2967, 3096, 3208, 3483, 3609, 3726, 3956, 4644, 4812, 4968, 5934, 6966, 7218, 7452, 7912, 8901, 9223, 9288, 9624, 10827, 11868, 13932, 14436, 14904, 17243, 17802, 18446, 21654, 23736, 26703, 27669, 27864, 28872, 32481, 34486, 35604, 36892, 43308, 51729, 53406, 55338, 64962, 68972, 71208, 73784, 80109, 83007, 86616, 103458, 106812, 110676, 129924, 137944, 155187, 160218, 166014, 206916, 213624, 221352, 249021, 259848, 310374, 320436, 332028, 396589, 413832, 465561, 498042, 620748, 640872, 664056, 747063, 793178, 931122, 996084, 1189767, 1241496, 1396683, 1494126, 1586356, 1862244, 1992168, 2379534, 2793366, 2988252, 3172712, 3569301, 3724488, 4759068, 5586732, 5976504, 7138602, 9518136, 10707903, 11173464, 14277204, 21415806, 28554408, 32123709, 42831612, 64247418, 85663224, 128494836, 256989672]

約数ペア:

[(1, 256989672), (2, 128494836), (3, 85663224), (4, 64247418), (6, 42831612), (8, 32123709), (9, 28554408), (12, 21415806), (18, 14277204), (23, 11173464), (24, 10707903), (27, 9518136), (36, 7138602), (43, 5976504), (46, 5586732), (54, 4759068), (69, 3724488), (72, 3569301), (81, 3172712), (86, 2988252), (92, 2793366), (108, 2379534), (129, 1992168), (138, 1862244), (162, 1586356), (172, 1494126), (184, 1396683), (207, 1241496), (216, 1189767), (258, 996084), (276, 931122), (324, 793178), (344, 747063), (387, 664056), (401, 640872), (414, 620748), (516, 498042), (552, 465561), (621, 413832), (648, 396589), (774, 332028), (802, 320436), (828, 310374), (989, 259848), (1032, 249021), (1161, 221352), (1203, 213624), (1242, 206916), (1548, 166014), (1604, 160218), (1656, 155187), (1863, 137944), (1978, 129924), (2322, 110676), (2406, 106812), (2484, 103458), (2967, 86616), (3096, 83007), (3208, 80109), (3483, 73784), (3609, 71208), (3726, 68972), (3956, 64962), (4644, 55338), (4812, 53406), (4968, 51729), (5934, 43308), (6966, 36892), (7218, 35604), (7452, 34486), (7912, 32481), (8901, 28872), (9223, 27864), (9288, 27669), (9624, 26703), (10827, 23736), (11868, 21654), (13932, 18446), (14436, 17802), (14904, 17243)]