20153040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{641}}^1$

素因数の和:788

約数の個数: 80

約数和(自身を含む): 63049536

約数和(自身を除く): 42896496

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 131, 240, 262, 393, 524, 641, 655, 786, 1048, 1282, 1310, 1572, 1923, 1965, 2096, 2564, 2620, 3144, 3205, 3846, 3930, 5128, 5240, 6288, 6410, 7692, 7860, 9615, 10256, 10480, 12820, 15384, 15720, 19230, 25640, 30768, 31440, 38460, 51280, 76920, 83971, 153840, 167942, 251913, 335884, 419855, 503826, 671768, 839710, 1007652, 1259565, 1343536, 1679420, 2015304, 2519130, 3358840, 4030608, 5038260, 6717680, 10076520, 20153040]

約数ペア:

[(1, 20153040), (2, 10076520), (3, 6717680), (4, 5038260), (5, 4030608), (6, 3358840), (8, 2519130), (10, 2015304), (12, 1679420), (15, 1343536), (16, 1259565), (20, 1007652), (24, 839710), (30, 671768), (40, 503826), (48, 419855), (60, 335884), (80, 251913), (120, 167942), (131, 153840), (240, 83971), (262, 76920), (393, 51280), (524, 38460), (641, 31440), (655, 30768), (786, 25640), (1048, 19230), (1282, 15720), (1310, 15384), (1572, 12820), (1923, 10480), (1965, 10256), (2096, 9615), (2564, 7860), (2620, 7692), (3144, 6410), (3205, 6288), (3846, 5240), (3930, 5128)]