85706820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2417}}^1$

素因数の和:2629

約数の個数: 72

約数和(自身を含む): 261405144

約数和(自身を除く): 175698324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 394, 591, 788, 985, 1182, 1773, 1970, 2364, 2417, 2955, 3546, 3940, 4834, 5910, 7092, 7251, 8865, 9668, 11820, 12085, 14502, 17730, 21753, 24170, 29004, 35460, 36255, 43506, 48340, 72510, 87012, 108765, 145020, 217530, 435060, 476149, 952298, 1428447, 1904596, 2380745, 2856894, 4285341, 4761490, 5713788, 7142235, 8570682, 9522980, 14284470, 17141364, 21426705, 28568940, 42853410, 85706820]

約数ペア:

[(1, 85706820), (2, 42853410), (3, 28568940), (4, 21426705), (5, 17141364), (6, 14284470), (9, 9522980), (10, 8570682), (12, 7142235), (15, 5713788), (18, 4761490), (20, 4285341), (30, 2856894), (36, 2380745), (45, 1904596), (60, 1428447), (90, 952298), (180, 476149), (197, 435060), (394, 217530), (591, 145020), (788, 108765), (985, 87012), (1182, 72510), (1773, 48340), (1970, 43506), (2364, 36255), (2417, 35460), (2955, 29004), (3546, 24170), (3940, 21753), (4834, 17730), (5910, 14502), (7092, 12085), (7251, 11820), (8865, 9668)]