65981440

素因数分解:

$2^{10}\times 5^1\times 7^2\times {\mathrm{263}}^1$

素因数の和:302

約数の個数: 132

約数和(自身を含む): 184819536

約数和(自身を除く): 118838096

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 263, 280, 320, 392, 448, 490, 512, 526, 560, 640, 784, 896, 980, 1024, 1052, 1120, 1280, 1315, 1568, 1792, 1841, 1960, 2104, 2240, 2560, 2630, 3136, 3584, 3682, 3920, 4208, 4480, 5120, 5260, 6272, 7168, 7364, 7840, 8416, 8960, 9205, 10520, 12544, 12887, 14728, 15680, 16832, 17920, 18410, 21040, 25088, 25774, 29456, 31360, 33664, 35840, 36820, 42080, 50176, 51548, 58912, 62720, 64435, 67328, 73640, 84160, 103096, 117824, 125440, 128870, 134656, 147280, 168320, 206192, 235648, 250880, 257740, 269312, 294560, 336640, 412384, 471296, 515480, 589120, 673280, 824768, 942592, 1030960, 1178240, 1346560, 1649536, 1885184, 2061920, 2356480, 3299072, 4123840, 4712960, 6598144, 8247680, 9425920, 13196288, 16495360, 32990720, 65981440]

約数ペア:

[(1, 65981440), (2, 32990720), (4, 16495360), (5, 13196288), (7, 9425920), (8, 8247680), (10, 6598144), (14, 4712960), (16, 4123840), (20, 3299072), (28, 2356480), (32, 2061920), (35, 1885184), (40, 1649536), (49, 1346560), (56, 1178240), (64, 1030960), (70, 942592), (80, 824768), (98, 673280), (112, 589120), (128, 515480), (140, 471296), (160, 412384), (196, 336640), (224, 294560), (245, 269312), (256, 257740), (263, 250880), (280, 235648), (320, 206192), (392, 168320), (448, 147280), (490, 134656), (512, 128870), (526, 125440), (560, 117824), (640, 103096), (784, 84160), (896, 73640), (980, 67328), (1024, 64435), (1052, 62720), (1120, 58912), (1280, 51548), (1315, 50176), (1568, 42080), (1792, 36820), (1841, 35840), (1960, 33664), (2104, 31360), (2240, 29456), (2560, 25774), (2630, 25088), (3136, 21040), (3584, 18410), (3682, 17920), (3920, 16832), (4208, 15680), (4480, 14728), (5120, 12887), (5260, 12544), (6272, 10520), (7168, 9205), (7364, 8960), (7840, 8416)]