8120340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:441

約数の個数: 72

約数和(自身を含む): 24864840

約数和(自身を除く): 16744500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 229, 394, 458, 591, 687, 788, 916, 985, 1145, 1182, 1374, 1773, 1970, 2061, 2290, 2364, 2748, 2955, 3435, 3546, 3940, 4122, 4580, 5910, 6870, 7092, 8244, 8865, 10305, 11820, 13740, 17730, 20610, 35460, 41220, 45113, 90226, 135339, 180452, 225565, 270678, 406017, 451130, 541356, 676695, 812034, 902260, 1353390, 1624068, 2030085, 2706780, 4060170, 8120340]

約数ペア:

[(1, 8120340), (2, 4060170), (3, 2706780), (4, 2030085), (5, 1624068), (6, 1353390), (9, 902260), (10, 812034), (12, 676695), (15, 541356), (18, 451130), (20, 406017), (30, 270678), (36, 225565), (45, 180452), (60, 135339), (90, 90226), (180, 45113), (197, 41220), (229, 35460), (394, 20610), (458, 17730), (591, 13740), (687, 11820), (788, 10305), (916, 8865), (985, 8244), (1145, 7092), (1182, 6870), (1374, 5910), (1773, 4580), (1970, 4122), (2061, 3940), (2290, 3546), (2364, 3435), (2748, 2955)]