81841680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{577}}^1$

素因数の和:793

約数の個数: 120

約数和(自身を含む): 276725592

約数和(自身を除く): 194883912

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 197, 240, 360, 394, 577, 591, 720, 788, 985, 1154, 1182, 1576, 1731, 1773, 1970, 2308, 2364, 2885, 2955, 3152, 3462, 3546, 3940, 4616, 4728, 5193, 5770, 5910, 6924, 7092, 7880, 8655, 8865, 9232, 9456, 10386, 11540, 11820, 13848, 14184, 15760, 17310, 17730, 20772, 23080, 23640, 25965, 27696, 28368, 34620, 35460, 41544, 46160, 47280, 51930, 69240, 70920, 83088, 103860, 113669, 138480, 141840, 207720, 227338, 341007, 415440, 454676, 568345, 682014, 909352, 1023021, 1136690, 1364028, 1705035, 1818704, 2046042, 2273380, 2728056, 3410070, 4092084, 4546760, 5115105, 5456112, 6820140, 8184168, 9093520, 10230210, 13640280, 16368336, 20460420, 27280560, 40920840, 81841680]

約数ペア:

[(1, 81841680), (2, 40920840), (3, 27280560), (4, 20460420), (5, 16368336), (6, 13640280), (8, 10230210), (9, 9093520), (10, 8184168), (12, 6820140), (15, 5456112), (16, 5115105), (18, 4546760), (20, 4092084), (24, 3410070), (30, 2728056), (36, 2273380), (40, 2046042), (45, 1818704), (48, 1705035), (60, 1364028), (72, 1136690), (80, 1023021), (90, 909352), (120, 682014), (144, 568345), (180, 454676), (197, 415440), (240, 341007), (360, 227338), (394, 207720), (577, 141840), (591, 138480), (720, 113669), (788, 103860), (985, 83088), (1154, 70920), (1182, 69240), (1576, 51930), (1731, 47280), (1773, 46160), (1970, 41544), (2308, 35460), (2364, 34620), (2885, 28368), (2955, 27696), (3152, 25965), (3462, 23640), (3546, 23080), (3940, 20772), (4616, 17730), (4728, 17310), (5193, 15760), (5770, 14184), (5910, 13848), (6924, 11820), (7092, 11540), (7880, 10386), (8655, 9456), (8865, 9232)]