81339627265

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2741}}^1\times {\mathrm{5779}}^1$

素因数の和:8617

約数の個数: 32

約数和(自身を含む): 106503667200

約数和(自身を除く): 25164039935

約数列:

[1, 5, 13, 65, 79, 395, 1027, 2741, 5135, 5779, 13705, 28895, 35633, 75127, 178165, 216539, 375635, 456541, 1082695, 2282705, 2815007, 5935033, 14075035, 15840239, 29675165, 79201195, 205923107, 1029615535, 1251378881, 6256894405, 16267925453, 81339627265]

約数ペア:

[(1, 81339627265), (5, 16267925453), (13, 6256894405), (65, 1251378881), (79, 1029615535), (395, 205923107), (1027, 79201195), (2741, 29675165), (5135, 15840239), (5779, 14075035), (13705, 5935033), (28895, 2815007), (35633, 2282705), (75127, 1082695), (178165, 456541), (216539, 375635)]