281706880

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{691}}^1$

素因数の和:737

約数の個数: 192

約数和(自身を含む): 844890480

約数和(自身を除く): 563183600

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 64, 65, 70, 80, 91, 98, 104, 112, 128, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 320, 364, 392, 416, 448, 455, 490, 520, 560, 637, 640, 691, 728, 784, 832, 896, 910, 980, 1040, 1120, 1274, 1382, 1456, 1568, 1664, 1820, 1960, 2080, 2240, 2548, 2764, 2912, 3136, 3185, 3455, 3640, 3920, 4160, 4480, 4837, 5096, 5528, 5824, 6272, 6370, 6910, 7280, 7840, 8320, 8983, 9674, 10192, 11056, 11648, 12740, 13820, 14560, 15680, 17966, 19348, 20384, 22112, 24185, 25480, 27640, 29120, 31360, 33859, 35932, 38696, 40768, 44224, 44915, 48370, 50960, 55280, 58240, 62881, 67718, 71864, 77392, 81536, 88448, 89830, 96740, 101920, 110560, 125762, 135436, 143728, 154784, 169295, 179660, 193480, 203840, 221120, 251524, 270872, 287456, 309568, 314405, 338590, 359320, 386960, 407680, 440167, 442240, 503048, 541744, 574912, 619136, 628810, 677180, 718640, 773920, 880334, 1006096, 1083488, 1149824, 1257620, 1354360, 1437280, 1547840, 1760668, 2012192, 2166976, 2200835, 2515240, 2708720, 2874560, 3095680, 3521336, 4024384, 4333952, 4401670, 5030480, 5417440, 5749120, 7042672, 8048768, 8803340, 10060960, 10834880, 14085344, 17606680, 20121920, 21669760, 28170688, 35213360, 40243840, 56341376, 70426720, 140853440, 281706880]

約数ペア:

[(1, 281706880), (2, 140853440), (4, 70426720), (5, 56341376), (7, 40243840), (8, 35213360), (10, 28170688), (13, 21669760), (14, 20121920), (16, 17606680), (20, 14085344), (26, 10834880), (28, 10060960), (32, 8803340), (35, 8048768), (40, 7042672), (49, 5749120), (52, 5417440), (56, 5030480), (64, 4401670), (65, 4333952), (70, 4024384), (80, 3521336), (91, 3095680), (98, 2874560), (104, 2708720), (112, 2515240), (128, 2200835), (130, 2166976), (140, 2012192), (160, 1760668), (182, 1547840), (196, 1437280), (208, 1354360), (224, 1257620), (245, 1149824), (260, 1083488), (280, 1006096), (320, 880334), (364, 773920), (392, 718640), (416, 677180), (448, 628810), (455, 619136), (490, 574912), (520, 541744), (560, 503048), (637, 442240), (640, 440167), (691, 407680), (728, 386960), (784, 359320), (832, 338590), (896, 314405), (910, 309568), (980, 287456), (1040, 270872), (1120, 251524), (1274, 221120), (1382, 203840), (1456, 193480), (1568, 179660), (1664, 169295), (1820, 154784), (1960, 143728), (2080, 135436), (2240, 125762), (2548, 110560), (2764, 101920), (2912, 96740), (3136, 89830), (3185, 88448), (3455, 81536), (3640, 77392), (3920, 71864), (4160, 67718), (4480, 62881), (4837, 58240), (5096, 55280), (5528, 50960), (5824, 48370), (6272, 44915), (6370, 44224), (6910, 40768), (7280, 38696), (7840, 35932), (8320, 33859), (8983, 31360), (9674, 29120), (10192, 27640), (11056, 25480), (11648, 24185), (12740, 22112), (13820, 20384), (14560, 19348), (15680, 17966)]