639540414

素因数分解:

$2^1\times 3^3\times {\mathrm{2969}}^1\times {\mathrm{3989}}^1$

素因数の和:6969

約数の個数: 32

約数和(自身を含む): 1422036000

約数和(自身を除く): 782495586

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 2969, 3989, 5938, 7978, 8907, 11967, 17814, 23934, 26721, 35901, 53442, 71802, 80163, 107703, 160326, 215406, 11843341, 23686682, 35530023, 71060046, 106590069, 213180138, 319770207, 639540414]

約数ペア:

[(1, 639540414), (2, 319770207), (3, 213180138), (6, 106590069), (9, 71060046), (18, 35530023), (27, 23686682), (54, 11843341), (2969, 215406), (3989, 160326), (5938, 107703), (7978, 80163), (8907, 71802), (11967, 53442), (17814, 35901), (23934, 26721)]