263540985

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{2381}}^1$

素因数の和:2593

約数の個数: 32

約数和(自身を含む): 433562112

約数和(自身を除く): 170021127

約数列:

[1, 3, 5, 15, 47, 141, 157, 235, 471, 705, 785, 2355, 2381, 7143, 7379, 11905, 22137, 35715, 36895, 110685, 111907, 335721, 373817, 559535, 1121451, 1678605, 1869085, 5607255, 17569399, 52708197, 87846995, 263540985]

約数ペア:

[(1, 263540985), (3, 87846995), (5, 52708197), (15, 17569399), (47, 5607255), (141, 1869085), (157, 1678605), (235, 1121451), (471, 559535), (705, 373817), (785, 335721), (2355, 111907), (2381, 110685), (7143, 36895), (7379, 35715), (11905, 22137)]