20516040

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{56989}}^1$

素因数の和:57006

約数の個数: 48

約数和(自身を含む): 66678300

約数和(自身を除く): 46162260

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 56989, 113978, 170967, 227956, 284945, 341934, 455912, 512901, 569890, 683868, 854835, 1025802, 1139780, 1367736, 1709670, 2051604, 2279560, 2564505, 3419340, 4103208, 5129010, 6838680, 10258020, 20516040]

約数ペア:

[(1, 20516040), (2, 10258020), (3, 6838680), (4, 5129010), (5, 4103208), (6, 3419340), (8, 2564505), (9, 2279560), (10, 2051604), (12, 1709670), (15, 1367736), (18, 1139780), (20, 1025802), (24, 854835), (30, 683868), (36, 569890), (40, 512901), (45, 455912), (60, 341934), (72, 284945), (90, 227956), (120, 170967), (180, 113978), (360, 56989)]