81796215

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{739}}^1$

素因数の和:951

約数の個数: 32

約数和(自身を含む): 134691840

約数和(自身を除く): 52895625

約数列:

[1, 3, 5, 15, 47, 141, 157, 235, 471, 705, 739, 785, 2217, 2355, 3695, 7379, 11085, 22137, 34733, 36895, 104199, 110685, 116023, 173665, 348069, 520995, 580115, 1740345, 5453081, 16359243, 27265405, 81796215]

約数ペア:

[(1, 81796215), (3, 27265405), (5, 16359243), (15, 5453081), (47, 1740345), (141, 580115), (157, 520995), (235, 348069), (471, 173665), (705, 116023), (739, 110685), (785, 104199), (2217, 36895), (2355, 34733), (3695, 22137), (7379, 11085)]