39912880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{271}}^1$

素因数の和:554

約数の個数: 80

約数和(自身を含む): 106850304

約数和(自身を除く): 66937424

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 263, 271, 280, 526, 542, 560, 1052, 1084, 1315, 1355, 1841, 1897, 2104, 2168, 2630, 2710, 3682, 3794, 4208, 4336, 5260, 5420, 7364, 7588, 9205, 9485, 10520, 10840, 14728, 15176, 18410, 18970, 21040, 21680, 29456, 30352, 36820, 37940, 71273, 73640, 75880, 142546, 147280, 151760, 285092, 356365, 498911, 570184, 712730, 997822, 1140368, 1425460, 1995644, 2494555, 2850920, 3991288, 4989110, 5701840, 7982576, 9978220, 19956440, 39912880]

約数ペア:

[(1, 39912880), (2, 19956440), (4, 9978220), (5, 7982576), (7, 5701840), (8, 4989110), (10, 3991288), (14, 2850920), (16, 2494555), (20, 1995644), (28, 1425460), (35, 1140368), (40, 997822), (56, 712730), (70, 570184), (80, 498911), (112, 356365), (140, 285092), (263, 151760), (271, 147280), (280, 142546), (526, 75880), (542, 73640), (560, 71273), (1052, 37940), (1084, 36820), (1315, 30352), (1355, 29456), (1841, 21680), (1897, 21040), (2104, 18970), (2168, 18410), (2630, 15176), (2710, 14728), (3682, 10840), (3794, 10520), (4208, 9485), (4336, 9205), (5260, 7588), (5420, 7364)]