78260220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2207}}^1$

素因数の和:2419

約数の個数: 72

約数和(自身を含む): 238702464

約数和(自身を除く): 160442244

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, 2207, 2364, 2955, 3546, 3940, 4414, 5910, 6621, 7092, 8828, 8865, 11035, 11820, 13242, 17730, 19863, 22070, 26484, 33105, 35460, 39726, 44140, 66210, 79452, 99315, 132420, 198630, 397260, 434779, 869558, 1304337, 1739116, 2173895, 2608674, 3913011, 4347790, 5217348, 6521685, 7826022, 8695580, 13043370, 15652044, 19565055, 26086740, 39130110, 78260220]

約数ペア:

[(1, 78260220), (2, 39130110), (3, 26086740), (4, 19565055), (5, 15652044), (6, 13043370), (9, 8695580), (10, 7826022), (12, 6521685), (15, 5217348), (18, 4347790), (20, 3913011), (30, 2608674), (36, 2173895), (45, 1739116), (60, 1304337), (90, 869558), (180, 434779), (197, 397260), (394, 198630), (591, 132420), (788, 99315), (985, 79452), (1182, 66210), (1773, 44140), (1970, 39726), (2207, 35460), (2364, 33105), (2955, 26484), (3546, 22070), (3940, 19863), (4414, 17730), (5910, 13242), (6621, 11820), (7092, 11035), (8828, 8865)]