639515

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:178

約数の個数: 16

約数和(自身を含む): 822528

約数和(自身を除く): 183013

約数列:

[1, 5, 23, 67, 83, 115, 335, 415, 1541, 1909, 5561, 7705, 9545, 27805, 127903, 639515]

約数ペア:

[(1, 639515), (5, 127903), (23, 27805), (67, 9545), (83, 7705), (115, 5561), (335, 1909), (415, 1541)]