20304368

素因数分解:

$2^4\times 7^1\times {\mathrm{199}}^1\times {\mathrm{911}}^1$

素因数の和:1125

約数の個数: 40

約数和(自身を含む): 45235200

約数和(自身を除く): 24930832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 199, 398, 796, 911, 1393, 1592, 1822, 2786, 3184, 3644, 5572, 6377, 7288, 11144, 12754, 14576, 22288, 25508, 51016, 102032, 181289, 362578, 725156, 1269023, 1450312, 2538046, 2900624, 5076092, 10152184, 20304368]

約数ペア:

[(1, 20304368), (2, 10152184), (4, 5076092), (7, 2900624), (8, 2538046), (14, 1450312), (16, 1269023), (28, 725156), (56, 362578), (112, 181289), (199, 102032), (398, 51016), (796, 25508), (911, 22288), (1393, 14576), (1592, 12754), (1822, 11144), (2786, 7288), (3184, 6377), (3644, 5572)]