81195575

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1439}}^1$

素因数の和:1547

約数の個数: 24

約数和(自身を含む): 105171840

約数和(自身を除く): 23976265

約数列:

[1, 5, 25, 37, 61, 185, 305, 925, 1439, 1525, 2257, 7195, 11285, 35975, 53243, 56425, 87779, 266215, 438895, 1331075, 2194475, 3247823, 16239115, 81195575]

約数ペア:

[(1, 81195575), (5, 16239115), (25, 3247823), (37, 2194475), (61, 1331075), (185, 438895), (305, 266215), (925, 87779), (1439, 56425), (1525, 53243), (2257, 35975), (7195, 11285)]