1247558980

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{439}}^1\times {\mathrm{941}}^1$

素因数の和:1540

約数の個数: 48

約数和(自身を含む): 2646040320

約数和(自身を除く): 1398481340

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 439, 604, 755, 878, 941, 1510, 1756, 1882, 2195, 3020, 3764, 4390, 4705, 8780, 9410, 18820, 66289, 132578, 142091, 265156, 284182, 331445, 413099, 568364, 662890, 710455, 826198, 1325780, 1420910, 1652396, 2065495, 2841820, 4130990, 8261980, 62377949, 124755898, 249511796, 311889745, 623779490, 1247558980]

約数ペア:

[(1, 1247558980), (2, 623779490), (4, 311889745), (5, 249511796), (10, 124755898), (20, 62377949), (151, 8261980), (302, 4130990), (439, 2841820), (604, 2065495), (755, 1652396), (878, 1420910), (941, 1325780), (1510, 826198), (1756, 710455), (1882, 662890), (2195, 568364), (3020, 413099), (3764, 331445), (4390, 284182), (4705, 265156), (8780, 142091), (9410, 132578), (18820, 66289)]