280121920

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{233}}^1$

素因数の和:297

約数の個数: 168

約数和(自身を含む): 766367784

約数和(自身を除く): 486245864

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 130, 136, 160, 170, 208, 221, 233, 260, 272, 289, 320, 340, 416, 442, 466, 520, 544, 578, 680, 832, 884, 932, 1040, 1088, 1105, 1156, 1165, 1360, 1445, 1768, 1864, 2080, 2210, 2312, 2330, 2720, 2890, 3029, 3536, 3728, 3757, 3961, 4160, 4420, 4624, 4660, 5440, 5780, 6058, 7072, 7456, 7514, 7922, 8840, 9248, 9320, 11560, 12116, 14144, 14912, 15028, 15145, 15844, 17680, 18496, 18640, 18785, 19805, 23120, 24232, 30056, 30290, 31688, 35360, 37280, 37570, 39610, 46240, 48464, 51493, 60112, 60580, 63376, 67337, 70720, 74560, 75140, 79220, 92480, 96928, 102986, 120224, 121160, 126752, 134674, 150280, 158440, 193856, 205972, 240448, 242320, 253504, 257465, 269348, 300560, 316880, 336685, 411944, 484640, 514930, 538696, 601120, 633760, 673370, 823888, 875381, 969280, 1029860, 1077392, 1202240, 1267520, 1346740, 1647776, 1750762, 2059720, 2154784, 2693480, 3295552, 3501524, 4119440, 4309568, 4376905, 5386960, 7003048, 8238880, 8753810, 10773920, 14006096, 16477760, 17507620, 21547840, 28012192, 35015240, 56024384, 70030480, 140060960, 280121920]

約数ペア:

[(1, 280121920), (2, 140060960), (4, 70030480), (5, 56024384), (8, 35015240), (10, 28012192), (13, 21547840), (16, 17507620), (17, 16477760), (20, 14006096), (26, 10773920), (32, 8753810), (34, 8238880), (40, 7003048), (52, 5386960), (64, 4376905), (65, 4309568), (68, 4119440), (80, 3501524), (85, 3295552), (104, 2693480), (130, 2154784), (136, 2059720), (160, 1750762), (170, 1647776), (208, 1346740), (221, 1267520), (233, 1202240), (260, 1077392), (272, 1029860), (289, 969280), (320, 875381), (340, 823888), (416, 673370), (442, 633760), (466, 601120), (520, 538696), (544, 514930), (578, 484640), (680, 411944), (832, 336685), (884, 316880), (932, 300560), (1040, 269348), (1088, 257465), (1105, 253504), (1156, 242320), (1165, 240448), (1360, 205972), (1445, 193856), (1768, 158440), (1864, 150280), (2080, 134674), (2210, 126752), (2312, 121160), (2330, 120224), (2720, 102986), (2890, 96928), (3029, 92480), (3536, 79220), (3728, 75140), (3757, 74560), (3961, 70720), (4160, 67337), (4420, 63376), (4624, 60580), (4660, 60112), (5440, 51493), (5780, 48464), (6058, 46240), (7072, 39610), (7456, 37570), (7514, 37280), (7922, 35360), (8840, 31688), (9248, 30290), (9320, 30056), (11560, 24232), (12116, 23120), (14144, 19805), (14912, 18785), (15028, 18640), (15145, 18496), (15844, 17680)]