20171249980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^2\times {\mathrm{8933}}^1$

素因数の和:9203

約数の個数: 72

約数和(自身を含む): 48800652768

約数和(自身を除く): 28629402788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 508, 635, 889, 1270, 1778, 2540, 3556, 4445, 8890, 8933, 16129, 17780, 17866, 32258, 35732, 44665, 62531, 64516, 80645, 89330, 112903, 125062, 161290, 178660, 225806, 250124, 312655, 322580, 451612, 564515, 625310, 1129030, 1134491, 1250620, 2258060, 2268982, 4537964, 5672455, 7941437, 11344910, 15882874, 22689820, 31765748, 39707185, 79414370, 144080357, 158828740, 288160714, 576321428, 720401785, 1008562499, 1440803570, 2017124998, 2881607140, 4034249996, 5042812495, 10085624990, 20171249980]

約数ペア:

[(1, 20171249980), (2, 10085624990), (4, 5042812495), (5, 4034249996), (7, 2881607140), (10, 2017124998), (14, 1440803570), (20, 1008562499), (28, 720401785), (35, 576321428), (70, 288160714), (127, 158828740), (140, 144080357), (254, 79414370), (508, 39707185), (635, 31765748), (889, 22689820), (1270, 15882874), (1778, 11344910), (2540, 7941437), (3556, 5672455), (4445, 4537964), (8890, 2268982), (8933, 2258060), (16129, 1250620), (17780, 1134491), (17866, 1129030), (32258, 625310), (35732, 564515), (44665, 451612), (62531, 322580), (64516, 312655), (80645, 250124), (89330, 225806), (112903, 178660), (125062, 161290)]