21076723920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{404699}}^1$

素因数の和:404753

約数の個数: 160

約数和(自身を含む): 77080780800

約数和(自身を除く): 56004056880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 105, 112, 120, 124, 140, 155, 168, 186, 210, 217, 240, 248, 280, 310, 336, 372, 420, 434, 465, 496, 560, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1488, 1680, 1736, 1860, 2170, 2480, 2604, 3255, 3472, 3720, 4340, 5208, 6510, 7440, 8680, 10416, 13020, 17360, 26040, 52080, 404699, 809398, 1214097, 1618796, 2023495, 2428194, 2832893, 3237592, 4046990, 4856388, 5665786, 6070485, 6475184, 8093980, 8498679, 9712776, 11331572, 12140970, 12545669, 14164465, 16187960, 16997358, 19425552, 22663144, 24281940, 25091338, 28328930, 32375920, 33994716, 37637007, 42493395, 45326288, 48563880, 50182676, 56657860, 62728345, 67989432, 75274014, 84986790, 87819683, 97127760, 100365352, 113315720, 125456690, 135978864, 150548028, 169973580, 175639366, 188185035, 200730704, 226631440, 250913380, 263459049, 301096056, 339947160, 351278732, 376370070, 439098415, 501826760, 526918098, 602192112, 679894320, 702557464, 752740140, 878196830, 1003653520, 1053836196, 1317295245, 1405114928, 1505480280, 1756393660, 2107672392, 2634590490, 3010960560, 3512787320, 4215344784, 5269180980, 7025574640, 10538361960, 21076723920]

約数ペア:

[(1, 21076723920), (2, 10538361960), (3, 7025574640), (4, 5269180980), (5, 4215344784), (6, 3512787320), (7, 3010960560), (8, 2634590490), (10, 2107672392), (12, 1756393660), (14, 1505480280), (15, 1405114928), (16, 1317295245), (20, 1053836196), (21, 1003653520), (24, 878196830), (28, 752740140), (30, 702557464), (31, 679894320), (35, 602192112), (40, 526918098), (42, 501826760), (48, 439098415), (56, 376370070), (60, 351278732), (62, 339947160), (70, 301096056), (80, 263459049), (84, 250913380), (93, 226631440), (105, 200730704), (112, 188185035), (120, 175639366), (124, 169973580), (140, 150548028), (155, 135978864), (168, 125456690), (186, 113315720), (210, 100365352), (217, 97127760), (240, 87819683), (248, 84986790), (280, 75274014), (310, 67989432), (336, 62728345), (372, 56657860), (420, 50182676), (434, 48563880), (465, 45326288), (496, 42493395), (560, 37637007), (620, 33994716), (651, 32375920), (744, 28328930), (840, 25091338), (868, 24281940), (930, 22663144), (1085, 19425552), (1240, 16997358), (1302, 16187960), (1488, 14164465), (1680, 12545669), (1736, 12140970), (1860, 11331572), (2170, 9712776), (2480, 8498679), (2604, 8093980), (3255, 6475184), (3472, 6070485), (3720, 5665786), (4340, 4856388), (5208, 4046990), (6510, 3237592), (7440, 2832893), (8680, 2428194), (10416, 2023495), (13020, 1618796), (17360, 1214097), (26040, 809398), (52080, 404699)]