247137840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:428

約数の個数: 240

約数和(自身を含む): 895898016

約数和(自身を除く): 648760176

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 60, 61, 68, 72, 80, 85, 90, 102, 120, 122, 136, 144, 153, 170, 180, 183, 204, 240, 244, 255, 272, 305, 306, 331, 340, 360, 366, 408, 488, 510, 549, 610, 612, 662, 680, 720, 732, 765, 816, 915, 976, 993, 1020, 1037, 1098, 1220, 1224, 1324, 1360, 1464, 1530, 1655, 1830, 1986, 2040, 2074, 2196, 2440, 2448, 2648, 2745, 2928, 2979, 3060, 3111, 3310, 3660, 3972, 4080, 4148, 4392, 4880, 4965, 5185, 5296, 5490, 5627, 5958, 6120, 6222, 6620, 7320, 7944, 8296, 8784, 9333, 9930, 10370, 10980, 11254, 11916, 12240, 12444, 13240, 14640, 14895, 15555, 15888, 16592, 16881, 18666, 19860, 20191, 20740, 21960, 22508, 23832, 24888, 26480, 28135, 29790, 31110, 33762, 37332, 39720, 40382, 41480, 43920, 45016, 46665, 47664, 49776, 50643, 56270, 59580, 60573, 62220, 67524, 74664, 79440, 80764, 82960, 84405, 90032, 93330, 100955, 101286, 112540, 119160, 121146, 124440, 135048, 149328, 161528, 168810, 181719, 186660, 201910, 202572, 225080, 238320, 242292, 248880, 253215, 270096, 302865, 323056, 337620, 343247, 363438, 373320, 403820, 405144, 450160, 484584, 506430, 605730, 675240, 686494, 726876, 746640, 807640, 810288, 908595, 969168, 1012860, 1029741, 1211460, 1350480, 1372988, 1453752, 1615280, 1716235, 1817190, 2025720, 2059482, 2422920, 2745976, 2907504, 3089223, 3432470, 3634380, 4051440, 4118964, 4845840, 5148705, 5491952, 6178446, 6864940, 7268760, 8237928, 10297410, 12356892, 13729880, 14537520, 15446115, 16475856, 20594820, 24713784, 27459760, 30892230, 41189640, 49427568, 61784460, 82379280, 123568920, 247137840]

約数ペア:

[(1, 247137840), (2, 123568920), (3, 82379280), (4, 61784460), (5, 49427568), (6, 41189640), (8, 30892230), (9, 27459760), (10, 24713784), (12, 20594820), (15, 16475856), (16, 15446115), (17, 14537520), (18, 13729880), (20, 12356892), (24, 10297410), (30, 8237928), (34, 7268760), (36, 6864940), (40, 6178446), (45, 5491952), (48, 5148705), (51, 4845840), (60, 4118964), (61, 4051440), (68, 3634380), (72, 3432470), (80, 3089223), (85, 2907504), (90, 2745976), (102, 2422920), (120, 2059482), (122, 2025720), (136, 1817190), (144, 1716235), (153, 1615280), (170, 1453752), (180, 1372988), (183, 1350480), (204, 1211460), (240, 1029741), (244, 1012860), (255, 969168), (272, 908595), (305, 810288), (306, 807640), (331, 746640), (340, 726876), (360, 686494), (366, 675240), (408, 605730), (488, 506430), (510, 484584), (549, 450160), (610, 405144), (612, 403820), (662, 373320), (680, 363438), (720, 343247), (732, 337620), (765, 323056), (816, 302865), (915, 270096), (976, 253215), (993, 248880), (1020, 242292), (1037, 238320), (1098, 225080), (1220, 202572), (1224, 201910), (1324, 186660), (1360, 181719), (1464, 168810), (1530, 161528), (1655, 149328), (1830, 135048), (1986, 124440), (2040, 121146), (2074, 119160), (2196, 112540), (2440, 101286), (2448, 100955), (2648, 93330), (2745, 90032), (2928, 84405), (2979, 82960), (3060, 80764), (3111, 79440), (3310, 74664), (3660, 67524), (3972, 62220), (4080, 60573), (4148, 59580), (4392, 56270), (4880, 50643), (4965, 49776), (5185, 47664), (5296, 46665), (5490, 45016), (5627, 43920), (5958, 41480), (6120, 40382), (6222, 39720), (6620, 37332), (7320, 33762), (7944, 31110), (8296, 29790), (8784, 28135), (9333, 26480), (9930, 24888), (10370, 23832), (10980, 22508), (11254, 21960), (11916, 20740), (12240, 20191), (12444, 19860), (13240, 18666), (14640, 16881), (14895, 16592), (15555, 15888)]