20012694

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 45287424

約数和(自身を除く): 25274730

約数列:

[1, 2, 3, 6, 13, 26, 39, 47, 53, 78, 94, 103, 106, 141, 159, 206, 282, 309, 318, 611, 618, 689, 1222, 1339, 1378, 1833, 2067, 2491, 2678, 3666, 4017, 4134, 4841, 4982, 5459, 7473, 8034, 9682, 10918, 14523, 14946, 16377, 29046, 32383, 32754, 62933, 64766, 70967, 97149, 125866, 141934, 188799, 194298, 212901, 256573, 377598, 425802, 513146, 769719, 1539438, 3335449, 6670898, 10006347, 20012694]

約数ペア:

[(1, 20012694), (2, 10006347), (3, 6670898), (6, 3335449), (13, 1539438), (26, 769719), (39, 513146), (47, 425802), (53, 377598), (78, 256573), (94, 212901), (103, 194298), (106, 188799), (141, 141934), (159, 125866), (206, 97149), (282, 70967), (309, 64766), (318, 62933), (611, 32754), (618, 32383), (689, 29046), (1222, 16377), (1339, 14946), (1378, 14523), (1833, 10918), (2067, 9682), (2491, 8034), (2678, 7473), (3666, 5459), (4017, 4982), (4134, 4841)]