64636271

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:375

約数の個数: 32

約数和(自身を含む): 81899520

約数和(自身を除く): 17263249

約数列:

[1, 7, 19, 31, 61, 133, 217, 257, 427, 589, 1159, 1799, 1891, 4123, 4883, 7967, 8113, 13237, 15677, 34181, 35929, 55769, 109739, 151373, 251503, 297863, 485987, 1059611, 2085041, 3401909, 9233753, 64636271]

約数ペア:

[(1, 64636271), (7, 9233753), (19, 3401909), (31, 2085041), (61, 1059611), (133, 485987), (217, 297863), (257, 251503), (427, 151373), (589, 109739), (1159, 55769), (1799, 35929), (1891, 34181), (4123, 15677), (4883, 13237), (7967, 8113)]