28555735

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 38384640

約数和(自身を除く): 9828905

約数列:

[1, 5, 13, 65, 67, 79, 83, 335, 395, 415, 871, 1027, 1079, 4355, 5135, 5293, 5395, 5561, 6557, 26465, 27805, 32785, 68809, 72293, 85241, 344045, 361465, 426205, 439319, 2196595, 5711147, 28555735]

約数ペア:

[(1, 28555735), (5, 5711147), (13, 2196595), (65, 439319), (67, 426205), (79, 361465), (83, 344045), (335, 85241), (395, 72293), (415, 68809), (871, 32785), (1027, 27805), (1079, 26465), (4355, 6557), (5135, 5561), (5293, 5395)]