20186901880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{607}}^1\times {\mathrm{43759}}^1$

素因数の和:44396

約数の個数: 64

約数和(自身を含む): 47890944000

約数和(自身を除く): 27704042120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 607, 760, 1214, 2428, 3035, 4856, 6070, 11533, 12140, 23066, 24280, 43759, 46132, 57665, 87518, 92264, 115330, 175036, 218795, 230660, 350072, 437590, 461320, 831421, 875180, 1662842, 1750360, 3325684, 4157105, 6651368, 8314210, 16628420, 26561713, 33256840, 53123426, 106246852, 132808565, 212493704, 265617130, 504672547, 531234260, 1009345094, 1062468520, 2018690188, 2523362735, 4037380376, 5046725470, 10093450940, 20186901880]

約数ペア:

[(1, 20186901880), (2, 10093450940), (4, 5046725470), (5, 4037380376), (8, 2523362735), (10, 2018690188), (19, 1062468520), (20, 1009345094), (38, 531234260), (40, 504672547), (76, 265617130), (95, 212493704), (152, 132808565), (190, 106246852), (380, 53123426), (607, 33256840), (760, 26561713), (1214, 16628420), (2428, 8314210), (3035, 6651368), (4856, 4157105), (6070, 3325684), (11533, 1750360), (12140, 1662842), (23066, 875180), (24280, 831421), (43759, 461320), (46132, 437590), (57665, 350072), (87518, 230660), (92264, 218795), (115330, 175036)]