81887680

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:426

約数の個数: 112

約数和(自身を含む): 225308160

約数和(自身を除く): 143420480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 139, 140, 160, 224, 263, 278, 280, 320, 448, 526, 556, 560, 695, 973, 1052, 1112, 1120, 1315, 1390, 1841, 1946, 2104, 2224, 2240, 2630, 2780, 3682, 3892, 4208, 4448, 4865, 5260, 5560, 7364, 7784, 8416, 8896, 9205, 9730, 10520, 11120, 14728, 15568, 16832, 18410, 19460, 21040, 22240, 29456, 31136, 36557, 36820, 38920, 42080, 44480, 58912, 62272, 73114, 73640, 77840, 84160, 117824, 146228, 147280, 155680, 182785, 255899, 292456, 294560, 311360, 365570, 511798, 584912, 589120, 731140, 1023596, 1169824, 1279495, 1462280, 2047192, 2339648, 2558990, 2924560, 4094384, 5117980, 5849120, 8188768, 10235960, 11698240, 16377536, 20471920, 40943840, 81887680]

約数ペア:

[(1, 81887680), (2, 40943840), (4, 20471920), (5, 16377536), (7, 11698240), (8, 10235960), (10, 8188768), (14, 5849120), (16, 5117980), (20, 4094384), (28, 2924560), (32, 2558990), (35, 2339648), (40, 2047192), (56, 1462280), (64, 1279495), (70, 1169824), (80, 1023596), (112, 731140), (139, 589120), (140, 584912), (160, 511798), (224, 365570), (263, 311360), (278, 294560), (280, 292456), (320, 255899), (448, 182785), (526, 155680), (556, 147280), (560, 146228), (695, 117824), (973, 84160), (1052, 77840), (1112, 73640), (1120, 73114), (1315, 62272), (1390, 58912), (1841, 44480), (1946, 42080), (2104, 38920), (2224, 36820), (2240, 36557), (2630, 31136), (2780, 29456), (3682, 22240), (3892, 21040), (4208, 19460), (4448, 18410), (4865, 16832), (5260, 15568), (5560, 14728), (7364, 11120), (7784, 10520), (8416, 9730), (8896, 9205)]