161839260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81737}}^1$

素因数の和:81763

約数の個数: 72

約数和(自身を含む): 535547376

約数和(自身を除く): 373708116

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 81737, 163474, 245211, 326948, 408685, 490422, 735633, 817370, 899107, 980844, 1226055, 1471266, 1634740, 1798214, 2452110, 2697321, 2942532, 3596428, 3678165, 4495535, 4904220, 5394642, 7356330, 8091963, 8991070, 10789284, 13486605, 14712660, 16183926, 17982140, 26973210, 32367852, 40459815, 53946420, 80919630, 161839260]

約数ペア:

[(1, 161839260), (2, 80919630), (3, 53946420), (4, 40459815), (5, 32367852), (6, 26973210), (9, 17982140), (10, 16183926), (11, 14712660), (12, 13486605), (15, 10789284), (18, 8991070), (20, 8091963), (22, 7356330), (30, 5394642), (33, 4904220), (36, 4495535), (44, 3678165), (45, 3596428), (55, 2942532), (60, 2697321), (66, 2452110), (90, 1798214), (99, 1634740), (110, 1471266), (132, 1226055), (165, 980844), (180, 899107), (198, 817370), (220, 735633), (330, 490422), (396, 408685), (495, 326948), (660, 245211), (990, 163474), (1980, 81737)]