638403456

素因数分解:

$2^7\times 3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^2\times {\mathrm{43}}^1$

素因数の和:165

約数の個数: 192

約数和(自身を含む): 1855877760

約数和(自身を除く): 1217474304

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 32, 41, 43, 46, 48, 64, 69, 82, 86, 92, 96, 123, 128, 129, 138, 164, 172, 184, 192, 246, 258, 276, 328, 344, 368, 384, 492, 516, 552, 656, 688, 736, 943, 984, 989, 1032, 1104, 1312, 1376, 1472, 1681, 1763, 1886, 1968, 1978, 2064, 2208, 2624, 2752, 2829, 2944, 2967, 3362, 3526, 3772, 3936, 3956, 4128, 4416, 5043, 5248, 5289, 5504, 5658, 5934, 6724, 7052, 7544, 7872, 7912, 8256, 8832, 10086, 10578, 11316, 11868, 13448, 14104, 15088, 15744, 15824, 16512, 20172, 21156, 22632, 23736, 26896, 28208, 30176, 31648, 38663, 40344, 40549, 42312, 45264, 47472, 53792, 56416, 60352, 63296, 72283, 77326, 80688, 81098, 84624, 90528, 94944, 107584, 112832, 115989, 120704, 121647, 126592, 144566, 154652, 161376, 162196, 169248, 181056, 189888, 215168, 216849, 225664, 231978, 243294, 289132, 309304, 322752, 324392, 338496, 362112, 379776, 433698, 463956, 486588, 578264, 618608, 645504, 648784, 676992, 867396, 927912, 973176, 1156528, 1237216, 1297568, 1662509, 1734792, 1855824, 1946352, 2313056, 2474432, 2595136, 3325018, 3469584, 3711648, 3892704, 4626112, 4948864, 4987527, 5190272, 6650036, 6939168, 7423296, 7785408, 9252224, 9975054, 13300072, 13878336, 14846592, 15570816, 19950108, 26600144, 27756672, 39900216, 53200288, 79800432, 106400576, 159600864, 212801152, 319201728, 638403456]

約数ペア:

[(1, 638403456), (2, 319201728), (3, 212801152), (4, 159600864), (6, 106400576), (8, 79800432), (12, 53200288), (16, 39900216), (23, 27756672), (24, 26600144), (32, 19950108), (41, 15570816), (43, 14846592), (46, 13878336), (48, 13300072), (64, 9975054), (69, 9252224), (82, 7785408), (86, 7423296), (92, 6939168), (96, 6650036), (123, 5190272), (128, 4987527), (129, 4948864), (138, 4626112), (164, 3892704), (172, 3711648), (184, 3469584), (192, 3325018), (246, 2595136), (258, 2474432), (276, 2313056), (328, 1946352), (344, 1855824), (368, 1734792), (384, 1662509), (492, 1297568), (516, 1237216), (552, 1156528), (656, 973176), (688, 927912), (736, 867396), (943, 676992), (984, 648784), (989, 645504), (1032, 618608), (1104, 578264), (1312, 486588), (1376, 463956), (1472, 433698), (1681, 379776), (1763, 362112), (1886, 338496), (1968, 324392), (1978, 322752), (2064, 309304), (2208, 289132), (2624, 243294), (2752, 231978), (2829, 225664), (2944, 216849), (2967, 215168), (3362, 189888), (3526, 181056), (3772, 169248), (3936, 162196), (3956, 161376), (4128, 154652), (4416, 144566), (5043, 126592), (5248, 121647), (5289, 120704), (5504, 115989), (5658, 112832), (5934, 107584), (6724, 94944), (7052, 90528), (7544, 84624), (7872, 81098), (7912, 80688), (8256, 77326), (8832, 72283), (10086, 63296), (10578, 60352), (11316, 56416), (11868, 53792), (13448, 47472), (14104, 45264), (15088, 42312), (15744, 40549), (15824, 40344), (16512, 38663), (20172, 31648), (21156, 30176), (22632, 28208), (23736, 26896)]