638564990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1223}}^1\times {\mathrm{7459}}^1$

素因数の和:8696

約数の個数: 32

約数和(自身を含む): 1314869760

約数和(自身を除く): 676304770

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1223, 2446, 6115, 7459, 8561, 12230, 14918, 17122, 37295, 42805, 52213, 74590, 85610, 104426, 261065, 522130, 9122357, 18244714, 45611785, 63856499, 91223570, 127712998, 319282495, 638564990]

約数ペア:

[(1, 638564990), (2, 319282495), (5, 127712998), (7, 91223570), (10, 63856499), (14, 45611785), (35, 18244714), (70, 9122357), (1223, 522130), (2446, 261065), (6115, 104426), (7459, 85610), (8561, 74590), (12230, 52213), (14918, 42805), (17122, 37295)]