20490696580

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{547}}^1\times {\mathrm{6101}}^1$

素因数の和:6964

約数の個数: 48

約数和(自身を含む): 43256638656

約数和(自身を除く): 22765942076

約数列:

[1, 2, 4, 5, 10, 20, 307, 547, 614, 1094, 1228, 1535, 2188, 2735, 3070, 5470, 6101, 6140, 10940, 12202, 24404, 30505, 61010, 122020, 167929, 335858, 671716, 839645, 1679290, 1873007, 3337247, 3358580, 3746014, 6674494, 7492028, 9365035, 13348988, 16686235, 18730070, 33372470, 37460140, 66744940, 1024534829, 2049069658, 4098139316, 5122674145, 10245348290, 20490696580]

約数ペア:

[(1, 20490696580), (2, 10245348290), (4, 5122674145), (5, 4098139316), (10, 2049069658), (20, 1024534829), (307, 66744940), (547, 37460140), (614, 33372470), (1094, 18730070), (1228, 16686235), (1535, 13348988), (2188, 9365035), (2735, 7492028), (3070, 6674494), (5470, 3746014), (6101, 3358580), (6140, 3337247), (10940, 1873007), (12202, 1679290), (24404, 839645), (30505, 671716), (61010, 335858), (122020, 167929)]