81724440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:194

約数の個数: 256

約数和(自身を含む): 304819200

約数和(自身を除く): 223094760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 59, 60, 68, 70, 84, 85, 97, 102, 105, 118, 119, 120, 136, 140, 168, 170, 177, 194, 204, 210, 236, 238, 255, 280, 291, 295, 340, 354, 357, 388, 408, 413, 420, 472, 476, 485, 510, 582, 590, 595, 679, 680, 708, 714, 776, 826, 840, 885, 952, 970, 1003, 1020, 1164, 1180, 1190, 1239, 1358, 1416, 1428, 1455, 1649, 1652, 1770, 1785, 1940, 2006, 2037, 2040, 2065, 2328, 2360, 2380, 2478, 2716, 2856, 2910, 3009, 3298, 3304, 3395, 3540, 3570, 3880, 4012, 4074, 4130, 4760, 4947, 4956, 5015, 5432, 5723, 5820, 6018, 6195, 6596, 6790, 7021, 7080, 7140, 8024, 8148, 8245, 8260, 9894, 9912, 10030, 10185, 11446, 11543, 11640, 12036, 12390, 13192, 13580, 14042, 14280, 15045, 16296, 16490, 16520, 17169, 19788, 20060, 20370, 21063, 22892, 23086, 24072, 24735, 24780, 27160, 28084, 28615, 30090, 32980, 34338, 34629, 35105, 39576, 40061, 40120, 40740, 42126, 45784, 46172, 49470, 49560, 56168, 57230, 57715, 60180, 65960, 68676, 69258, 70210, 80122, 81480, 84252, 85845, 92344, 97291, 98940, 105315, 114460, 115430, 120183, 120360, 137352, 138516, 140420, 160244, 168504, 171690, 173145, 194582, 197880, 200305, 210630, 228920, 230860, 240366, 277032, 280840, 291873, 320488, 343380, 346290, 389164, 400610, 421260, 461720, 480732, 486455, 583746, 600915, 681037, 686760, 692580, 778328, 801220, 842520, 961464, 972910, 1167492, 1201830, 1362074, 1385160, 1459365, 1602440, 1945820, 2043111, 2334984, 2403660, 2724148, 2918730, 3405185, 3891640, 4086222, 4807320, 5448296, 5837460, 6810370, 8172444, 10215555, 11674920, 13620740, 16344888, 20431110, 27241480, 40862220, 81724440]

約数ペア:

[(1, 81724440), (2, 40862220), (3, 27241480), (4, 20431110), (5, 16344888), (6, 13620740), (7, 11674920), (8, 10215555), (10, 8172444), (12, 6810370), (14, 5837460), (15, 5448296), (17, 4807320), (20, 4086222), (21, 3891640), (24, 3405185), (28, 2918730), (30, 2724148), (34, 2403660), (35, 2334984), (40, 2043111), (42, 1945820), (51, 1602440), (56, 1459365), (59, 1385160), (60, 1362074), (68, 1201830), (70, 1167492), (84, 972910), (85, 961464), (97, 842520), (102, 801220), (105, 778328), (118, 692580), (119, 686760), (120, 681037), (136, 600915), (140, 583746), (168, 486455), (170, 480732), (177, 461720), (194, 421260), (204, 400610), (210, 389164), (236, 346290), (238, 343380), (255, 320488), (280, 291873), (291, 280840), (295, 277032), (340, 240366), (354, 230860), (357, 228920), (388, 210630), (408, 200305), (413, 197880), (420, 194582), (472, 173145), (476, 171690), (485, 168504), (510, 160244), (582, 140420), (590, 138516), (595, 137352), (679, 120360), (680, 120183), (708, 115430), (714, 114460), (776, 105315), (826, 98940), (840, 97291), (885, 92344), (952, 85845), (970, 84252), (1003, 81480), (1020, 80122), (1164, 70210), (1180, 69258), (1190, 68676), (1239, 65960), (1358, 60180), (1416, 57715), (1428, 57230), (1455, 56168), (1649, 49560), (1652, 49470), (1770, 46172), (1785, 45784), (1940, 42126), (2006, 40740), (2037, 40120), (2040, 40061), (2065, 39576), (2328, 35105), (2360, 34629), (2380, 34338), (2478, 32980), (2716, 30090), (2856, 28615), (2910, 28084), (3009, 27160), (3298, 24780), (3304, 24735), (3395, 24072), (3540, 23086), (3570, 22892), (3880, 21063), (4012, 20370), (4074, 20060), (4130, 19788), (4760, 17169), (4947, 16520), (4956, 16490), (5015, 16296), (5432, 15045), (5723, 14280), (5820, 14042), (6018, 13580), (6195, 13192), (6596, 12390), (6790, 12036), (7021, 11640), (7080, 11543), (7140, 11446), (8024, 10185), (8148, 10030), (8245, 9912), (8260, 9894)]