256223088

素因数分解:

$2^4\times 3^6\times {\mathrm{11}}^1\times {\mathrm{1997}}^1$

素因数の和:2034

約数の個数: 140

約数和(自身を含む): 812378808

約数和(自身を除く): 556155720

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 27, 33, 36, 44, 48, 54, 66, 72, 81, 88, 99, 108, 132, 144, 162, 176, 198, 216, 243, 264, 297, 324, 396, 432, 486, 528, 594, 648, 729, 792, 891, 972, 1188, 1296, 1458, 1584, 1782, 1944, 1997, 2376, 2673, 2916, 3564, 3888, 3994, 4752, 5346, 5832, 5991, 7128, 7988, 8019, 10692, 11664, 11982, 14256, 15976, 16038, 17973, 21384, 21967, 23964, 31952, 32076, 35946, 42768, 43934, 47928, 53919, 64152, 65901, 71892, 87868, 95856, 107838, 128304, 131802, 143784, 161757, 175736, 197703, 215676, 263604, 287568, 323514, 351472, 395406, 431352, 485271, 527208, 593109, 647028, 790812, 862704, 970542, 1054416, 1186218, 1294056, 1455813, 1581624, 1779327, 1941084, 2372436, 2588112, 2911626, 3163248, 3558654, 3882168, 4744872, 5337981, 5823252, 7117308, 7764336, 9489744, 10675962, 11646504, 14234616, 16013943, 21351924, 23293008, 28469232, 32027886, 42703848, 64055772, 85407696, 128111544, 256223088]

約数ペア:

[(1, 256223088), (2, 128111544), (3, 85407696), (4, 64055772), (6, 42703848), (8, 32027886), (9, 28469232), (11, 23293008), (12, 21351924), (16, 16013943), (18, 14234616), (22, 11646504), (24, 10675962), (27, 9489744), (33, 7764336), (36, 7117308), (44, 5823252), (48, 5337981), (54, 4744872), (66, 3882168), (72, 3558654), (81, 3163248), (88, 2911626), (99, 2588112), (108, 2372436), (132, 1941084), (144, 1779327), (162, 1581624), (176, 1455813), (198, 1294056), (216, 1186218), (243, 1054416), (264, 970542), (297, 862704), (324, 790812), (396, 647028), (432, 593109), (486, 527208), (528, 485271), (594, 431352), (648, 395406), (729, 351472), (792, 323514), (891, 287568), (972, 263604), (1188, 215676), (1296, 197703), (1458, 175736), (1584, 161757), (1782, 143784), (1944, 131802), (1997, 128304), (2376, 107838), (2673, 95856), (2916, 87868), (3564, 71892), (3888, 65901), (3994, 64152), (4752, 53919), (5346, 47928), (5832, 43934), (5991, 42768), (7128, 35946), (7988, 32076), (8019, 31952), (10692, 23964), (11664, 21967), (11982, 21384), (14256, 17973), (15976, 16038)]