538686740

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^2\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 1177341480

約数和(自身を除く): 638654740

約数列:

[1, 2, 4, 5, 10, 20, 47, 89, 94, 137, 178, 188, 235, 274, 356, 445, 470, 548, 685, 890, 940, 1370, 1780, 2209, 2740, 4183, 4418, 6439, 8366, 8836, 11045, 12193, 12878, 16732, 20915, 22090, 24386, 25756, 32195, 41830, 44180, 48772, 60965, 64390, 83660, 121930, 128780, 196601, 243860, 302633, 393202, 573071, 605266, 786404, 983005, 1146142, 1210532, 1513165, 1966010, 2292284, 2865355, 3026330, 3932020, 5730710, 6052660, 11461420, 26934337, 53868674, 107737348, 134671685, 269343370, 538686740]

約数ペア:

[(1, 538686740), (2, 269343370), (4, 134671685), (5, 107737348), (10, 53868674), (20, 26934337), (47, 11461420), (89, 6052660), (94, 5730710), (137, 3932020), (178, 3026330), (188, 2865355), (235, 2292284), (274, 1966010), (356, 1513165), (445, 1210532), (470, 1146142), (548, 983005), (685, 786404), (890, 605266), (940, 573071), (1370, 393202), (1780, 302633), (2209, 243860), (2740, 196601), (4183, 128780), (4418, 121930), (6439, 83660), (8366, 64390), (8836, 60965), (11045, 48772), (12193, 44180), (12878, 41830), (16732, 32195), (20915, 25756), (22090, 24386)]