25664015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 34546176

約数和(自身を除く): 8882161

約数列:

[1, 5, 13, 65, 67, 71, 83, 335, 355, 415, 871, 923, 1079, 4355, 4615, 4757, 5395, 5561, 5893, 23785, 27805, 29465, 61841, 72293, 76609, 309205, 361465, 383045, 394831, 1974155, 5132803, 25664015]

約数ペア:

[(1, 25664015), (5, 5132803), (13, 1974155), (65, 394831), (67, 383045), (71, 361465), (83, 309205), (335, 76609), (355, 72293), (415, 61841), (871, 29465), (923, 27805), (1079, 23785), (4355, 5893), (4615, 5561), (4757, 5395)]