8975820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:140

約数の個数: 144

約数和(自身を含む): 30336768

約数和(自身を除く): 21360948

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 49, 60, 70, 71, 84, 86, 98, 105, 129, 140, 142, 147, 172, 196, 210, 213, 215, 245, 258, 284, 294, 301, 355, 420, 426, 430, 490, 497, 516, 588, 602, 645, 710, 735, 852, 860, 903, 980, 994, 1065, 1204, 1290, 1420, 1470, 1491, 1505, 1806, 1988, 2107, 2130, 2485, 2580, 2940, 2982, 3010, 3053, 3479, 3612, 4214, 4260, 4515, 4970, 5964, 6020, 6106, 6321, 6958, 7455, 8428, 9030, 9159, 9940, 10437, 10535, 12212, 12642, 13916, 14910, 15265, 17395, 18060, 18318, 20874, 21070, 21371, 25284, 29820, 30530, 31605, 34790, 36636, 41748, 42140, 42742, 45795, 52185, 61060, 63210, 64113, 69580, 85484, 91590, 104370, 106855, 126420, 128226, 149597, 183180, 208740, 213710, 256452, 299194, 320565, 427420, 448791, 598388, 641130, 747985, 897582, 1282260, 1495970, 1795164, 2243955, 2991940, 4487910, 8975820]

約数ペア:

[(1, 8975820), (2, 4487910), (3, 2991940), (4, 2243955), (5, 1795164), (6, 1495970), (7, 1282260), (10, 897582), (12, 747985), (14, 641130), (15, 598388), (20, 448791), (21, 427420), (28, 320565), (30, 299194), (35, 256452), (42, 213710), (43, 208740), (49, 183180), (60, 149597), (70, 128226), (71, 126420), (84, 106855), (86, 104370), (98, 91590), (105, 85484), (129, 69580), (140, 64113), (142, 63210), (147, 61060), (172, 52185), (196, 45795), (210, 42742), (213, 42140), (215, 41748), (245, 36636), (258, 34790), (284, 31605), (294, 30530), (301, 29820), (355, 25284), (420, 21371), (426, 21070), (430, 20874), (490, 18318), (497, 18060), (516, 17395), (588, 15265), (602, 14910), (645, 13916), (710, 12642), (735, 12212), (852, 10535), (860, 10437), (903, 9940), (980, 9159), (994, 9030), (1065, 8428), (1204, 7455), (1290, 6958), (1420, 6321), (1470, 6106), (1491, 6020), (1505, 5964), (1806, 4970), (1988, 4515), (2107, 4260), (2130, 4214), (2485, 3612), (2580, 3479), (2940, 3053), (2982, 3010)]