320199460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{719}}^1\times {\mathrm{3181}}^1$

素因数の和:3916

約数の個数: 48

約数和(自身を含む): 769789440

約数和(自身を除く): 449589980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 719, 1438, 2876, 3181, 3595, 5033, 6362, 7190, 10066, 12724, 14380, 15905, 20132, 22267, 25165, 31810, 44534, 50330, 63620, 89068, 100660, 111335, 222670, 445340, 2287139, 4574278, 9148556, 11435695, 16009973, 22871390, 32019946, 45742780, 64039892, 80049865, 160099730, 320199460]

約数ペア:

[(1, 320199460), (2, 160099730), (4, 80049865), (5, 64039892), (7, 45742780), (10, 32019946), (14, 22871390), (20, 16009973), (28, 11435695), (35, 9148556), (70, 4574278), (140, 2287139), (719, 445340), (1438, 222670), (2876, 111335), (3181, 100660), (3595, 89068), (5033, 63620), (6362, 50330), (7190, 44534), (10066, 31810), (12724, 25165), (14380, 22267), (15905, 20132)]