1282120280

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:311

約数の個数: 256

約数和(自身を含む): 3732480000

約数和(自身を除く): 2450359720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 23, 28, 34, 35, 40, 46, 49, 56, 68, 70, 85, 92, 98, 115, 119, 136, 140, 161, 170, 184, 196, 230, 238, 239, 245, 280, 322, 340, 343, 391, 392, 460, 476, 478, 490, 595, 644, 680, 686, 782, 805, 833, 920, 952, 956, 980, 1127, 1190, 1195, 1288, 1372, 1564, 1610, 1666, 1673, 1715, 1912, 1955, 1960, 2254, 2380, 2390, 2737, 2744, 3128, 3220, 3332, 3346, 3430, 3910, 4063, 4165, 4508, 4760, 4780, 5474, 5497, 5635, 5831, 6440, 6664, 6692, 6860, 7820, 7889, 8126, 8330, 8365, 9016, 9560, 10948, 10994, 11270, 11662, 11711, 13384, 13685, 13720, 15640, 15778, 16252, 16660, 16730, 19159, 20315, 21896, 21988, 22540, 23324, 23422, 27370, 27485, 28441, 29155, 31556, 32504, 33320, 33460, 38318, 38479, 39445, 40630, 43976, 45080, 46648, 46844, 54740, 54970, 56882, 58310, 58555, 63112, 66920, 76636, 76958, 78890, 81260, 81977, 93449, 93688, 95795, 109480, 109940, 113764, 116620, 117110, 134113, 142205, 153272, 153916, 157780, 162520, 163954, 186898, 191590, 192395, 199087, 219880, 227528, 233240, 234220, 268226, 269353, 284410, 307832, 315560, 327908, 373796, 383180, 384790, 398174, 409885, 467245, 468440, 536452, 538706, 568820, 654143, 655816, 670565, 747592, 766360, 769580, 796348, 819770, 934490, 995435, 1072904, 1077412, 1137640, 1308286, 1341130, 1346765, 1393609, 1539160, 1592696, 1639540, 1868980, 1885471, 1990870, 2154824, 2616572, 2682260, 2693530, 2787218, 3270715, 3279080, 3737960, 3770942, 3981740, 4579001, 5233144, 5364520, 5387060, 5574436, 6541430, 6968045, 7541884, 7963480, 9158002, 9427355, 10774120, 11148872, 13082860, 13936090, 15083768, 18316004, 18854710, 22895005, 26165720, 27872180, 32053007, 36632008, 37709420, 45790010, 55744360, 64106014, 75418840, 91580020, 128212028, 160265035, 183160040, 256424056, 320530070, 641060140, 1282120280]

約数ペア:

[(1, 1282120280), (2, 641060140), (4, 320530070), (5, 256424056), (7, 183160040), (8, 160265035), (10, 128212028), (14, 91580020), (17, 75418840), (20, 64106014), (23, 55744360), (28, 45790010), (34, 37709420), (35, 36632008), (40, 32053007), (46, 27872180), (49, 26165720), (56, 22895005), (68, 18854710), (70, 18316004), (85, 15083768), (92, 13936090), (98, 13082860), (115, 11148872), (119, 10774120), (136, 9427355), (140, 9158002), (161, 7963480), (170, 7541884), (184, 6968045), (196, 6541430), (230, 5574436), (238, 5387060), (239, 5364520), (245, 5233144), (280, 4579001), (322, 3981740), (340, 3770942), (343, 3737960), (391, 3279080), (392, 3270715), (460, 2787218), (476, 2693530), (478, 2682260), (490, 2616572), (595, 2154824), (644, 1990870), (680, 1885471), (686, 1868980), (782, 1639540), (805, 1592696), (833, 1539160), (920, 1393609), (952, 1346765), (956, 1341130), (980, 1308286), (1127, 1137640), (1190, 1077412), (1195, 1072904), (1288, 995435), (1372, 934490), (1564, 819770), (1610, 796348), (1666, 769580), (1673, 766360), (1715, 747592), (1912, 670565), (1955, 655816), (1960, 654143), (2254, 568820), (2380, 538706), (2390, 536452), (2737, 468440), (2744, 467245), (3128, 409885), (3220, 398174), (3332, 384790), (3346, 383180), (3430, 373796), (3910, 327908), (4063, 315560), (4165, 307832), (4508, 284410), (4760, 269353), (4780, 268226), (5474, 234220), (5497, 233240), (5635, 227528), (5831, 219880), (6440, 199087), (6664, 192395), (6692, 191590), (6860, 186898), (7820, 163954), (7889, 162520), (8126, 157780), (8330, 153916), (8365, 153272), (9016, 142205), (9560, 134113), (10948, 117110), (10994, 116620), (11270, 113764), (11662, 109940), (11711, 109480), (13384, 95795), (13685, 93688), (13720, 93449), (15640, 81977), (15778, 81260), (16252, 78890), (16660, 76958), (16730, 76636), (19159, 66920), (20315, 63112), (21896, 58555), (21988, 58310), (22540, 56882), (23324, 54970), (23422, 54740), (27370, 46844), (27485, 46648), (28441, 45080), (29155, 43976), (31556, 40630), (32504, 39445), (33320, 38479), (33460, 38318)]