28982140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1279}}^1$

素因数の和:1402

約数の個数: 48

約数和(自身を含む): 67092480

約数和(自身を除く): 38110340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 412, 515, 1030, 1133, 1279, 2060, 2266, 2558, 4532, 5116, 5665, 6395, 11330, 12790, 14069, 22660, 25580, 28138, 56276, 70345, 131737, 140690, 263474, 281380, 526948, 658685, 1317370, 1449107, 2634740, 2898214, 5796428, 7245535, 14491070, 28982140]

約数ペア:

[(1, 28982140), (2, 14491070), (4, 7245535), (5, 5796428), (10, 2898214), (11, 2634740), (20, 1449107), (22, 1317370), (44, 658685), (55, 526948), (103, 281380), (110, 263474), (206, 140690), (220, 131737), (412, 70345), (515, 56276), (1030, 28138), (1133, 25580), (1279, 22660), (2060, 14069), (2266, 12790), (2558, 11330), (4532, 6395), (5116, 5665)]