81897568

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{997}}^1$

素因数の和:1175

約数の個数: 48

約数和(自身を含む): 172023264

約数和(自身を除く): 90125696

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 151, 272, 302, 544, 604, 997, 1208, 1994, 2416, 2567, 3988, 4832, 5134, 7976, 10268, 15952, 16949, 20536, 31904, 33898, 41072, 67796, 82144, 135592, 150547, 271184, 301094, 542368, 602188, 1204376, 2408752, 2559299, 4817504, 5118598, 10237196, 20474392, 40948784, 81897568]

約数ペア:

[(1, 81897568), (2, 40948784), (4, 20474392), (8, 10237196), (16, 5118598), (17, 4817504), (32, 2559299), (34, 2408752), (68, 1204376), (136, 602188), (151, 542368), (272, 301094), (302, 271184), (544, 150547), (604, 135592), (997, 82144), (1208, 67796), (1994, 41072), (2416, 33898), (2567, 31904), (3988, 20536), (4832, 16949), (5134, 15952), (7976, 10268)]