647125990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1223}}^1\times {\mathrm{7559}}^1$

素因数の和:8796

約数の個数: 32

約数和(自身を含む): 1332495360

約数和(自身を除く): 685369370

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1223, 2446, 6115, 7559, 8561, 12230, 15118, 17122, 37795, 42805, 52913, 75590, 85610, 105826, 264565, 529130, 9244657, 18489314, 46223285, 64712599, 92446570, 129425198, 323562995, 647125990]

約数ペア:

[(1, 647125990), (2, 323562995), (5, 129425198), (7, 92446570), (10, 64712599), (14, 46223285), (35, 18489314), (70, 9244657), (1223, 529130), (2446, 264565), (6115, 105826), (7559, 85610), (8561, 75590), (12230, 52913), (15118, 42805), (17122, 37795)]