1285287640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{691}}^1$

素因数の和:802

約数の個数: 192

約数和(自身を含む): 3677758560

約数和(自身を除く): 2392470920

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 73, 91, 98, 104, 130, 140, 146, 182, 196, 245, 260, 280, 292, 364, 365, 392, 455, 490, 511, 520, 584, 637, 691, 728, 730, 910, 949, 980, 1022, 1274, 1382, 1460, 1820, 1898, 1960, 2044, 2548, 2555, 2764, 2920, 3185, 3455, 3577, 3640, 3796, 4088, 4745, 4837, 5096, 5110, 5528, 6370, 6643, 6910, 7154, 7592, 8983, 9490, 9674, 10220, 12740, 13286, 13820, 14308, 17885, 17966, 18980, 19348, 20440, 24185, 25480, 26572, 27640, 28616, 33215, 33859, 35770, 35932, 37960, 38696, 44915, 46501, 48370, 50443, 53144, 62881, 66430, 67718, 71540, 71864, 89830, 93002, 96740, 100886, 125762, 132860, 135436, 143080, 169295, 179660, 186004, 193480, 201772, 232505, 251524, 252215, 265720, 270872, 314405, 338590, 353101, 359320, 372008, 403544, 440167, 465010, 503048, 504430, 628810, 655759, 677180, 706202, 880334, 930020, 1008860, 1257620, 1311518, 1354360, 1412404, 1760668, 1765505, 1860040, 2017720, 2200835, 2471707, 2515240, 2623036, 2824808, 3278795, 3521336, 3531010, 4401670, 4590313, 4943414, 5246072, 6557590, 7062020, 8803340, 9180626, 9886828, 12358535, 13115180, 14124040, 17606680, 18361252, 19773656, 22951565, 24717070, 26230360, 32132191, 36722504, 45903130, 49434140, 64264382, 91806260, 98868280, 128528764, 160660955, 183612520, 257057528, 321321910, 642643820, 1285287640]

約数ペア:

[(1, 1285287640), (2, 642643820), (4, 321321910), (5, 257057528), (7, 183612520), (8, 160660955), (10, 128528764), (13, 98868280), (14, 91806260), (20, 64264382), (26, 49434140), (28, 45903130), (35, 36722504), (40, 32132191), (49, 26230360), (52, 24717070), (56, 22951565), (65, 19773656), (70, 18361252), (73, 17606680), (91, 14124040), (98, 13115180), (104, 12358535), (130, 9886828), (140, 9180626), (146, 8803340), (182, 7062020), (196, 6557590), (245, 5246072), (260, 4943414), (280, 4590313), (292, 4401670), (364, 3531010), (365, 3521336), (392, 3278795), (455, 2824808), (490, 2623036), (511, 2515240), (520, 2471707), (584, 2200835), (637, 2017720), (691, 1860040), (728, 1765505), (730, 1760668), (910, 1412404), (949, 1354360), (980, 1311518), (1022, 1257620), (1274, 1008860), (1382, 930020), (1460, 880334), (1820, 706202), (1898, 677180), (1960, 655759), (2044, 628810), (2548, 504430), (2555, 503048), (2764, 465010), (2920, 440167), (3185, 403544), (3455, 372008), (3577, 359320), (3640, 353101), (3796, 338590), (4088, 314405), (4745, 270872), (4837, 265720), (5096, 252215), (5110, 251524), (5528, 232505), (6370, 201772), (6643, 193480), (6910, 186004), (7154, 179660), (7592, 169295), (8983, 143080), (9490, 135436), (9674, 132860), (10220, 125762), (12740, 100886), (13286, 96740), (13820, 93002), (14308, 89830), (17885, 71864), (17966, 71540), (18980, 67718), (19348, 66430), (20440, 62881), (24185, 53144), (25480, 50443), (26572, 48370), (27640, 46501), (28616, 44915), (33215, 38696), (33859, 37960), (35770, 35932)]