20460420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{577}}^1$

素因数の和:789

約数の個数: 72

約数和(自身を含む): 62486424

約数和(自身を除く): 42026004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 394, 577, 591, 788, 985, 1154, 1182, 1731, 1773, 1970, 2308, 2364, 2885, 2955, 3462, 3546, 3940, 5193, 5770, 5910, 6924, 7092, 8655, 8865, 10386, 11540, 11820, 17310, 17730, 20772, 25965, 34620, 35460, 51930, 103860, 113669, 227338, 341007, 454676, 568345, 682014, 1023021, 1136690, 1364028, 1705035, 2046042, 2273380, 3410070, 4092084, 5115105, 6820140, 10230210, 20460420]

約数ペア:

[(1, 20460420), (2, 10230210), (3, 6820140), (4, 5115105), (5, 4092084), (6, 3410070), (9, 2273380), (10, 2046042), (12, 1705035), (15, 1364028), (18, 1136690), (20, 1023021), (30, 682014), (36, 568345), (45, 454676), (60, 341007), (90, 227338), (180, 113669), (197, 103860), (394, 51930), (577, 35460), (591, 34620), (788, 25965), (985, 20772), (1154, 17730), (1182, 17310), (1731, 11820), (1773, 11540), (1970, 10386), (2308, 8865), (2364, 8655), (2885, 7092), (2955, 6924), (3462, 5910), (3546, 5770), (3940, 5193)]