81174520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4327}}^1$

素因数の和:4412

約数の個数: 64

約数和(自身を含む): 211898880

約数和(自身を除く): 130724360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 469, 536, 670, 938, 1340, 1876, 2345, 2680, 3752, 4327, 4690, 8654, 9380, 17308, 18760, 21635, 30289, 34616, 43270, 60578, 86540, 121156, 151445, 173080, 242312, 289909, 302890, 579818, 605780, 1159636, 1211560, 1449545, 2029363, 2319272, 2899090, 4058726, 5798180, 8117452, 10146815, 11596360, 16234904, 20293630, 40587260, 81174520]

約数ペア:

[(1, 81174520), (2, 40587260), (4, 20293630), (5, 16234904), (7, 11596360), (8, 10146815), (10, 8117452), (14, 5798180), (20, 4058726), (28, 2899090), (35, 2319272), (40, 2029363), (56, 1449545), (67, 1211560), (70, 1159636), (134, 605780), (140, 579818), (268, 302890), (280, 289909), (335, 242312), (469, 173080), (536, 151445), (670, 121156), (938, 86540), (1340, 60578), (1876, 43270), (2345, 34616), (2680, 30289), (3752, 21635), (4327, 18760), (4690, 17308), (8654, 9380)]