66965704

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20771}}^1$

素因数の和:20821

約数の個数: 32

約数和(自身を含む): 139587840

約数和(自身を除く): 72622136

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 20771, 41542, 83084, 166168, 270023, 540046, 643901, 1080092, 1287802, 2160184, 2575604, 5151208, 8370713, 16741426, 33482852, 66965704]

約数ペア:

[(1, 66965704), (2, 33482852), (4, 16741426), (8, 8370713), (13, 5151208), (26, 2575604), (31, 2160184), (52, 1287802), (62, 1080092), (104, 643901), (124, 540046), (248, 270023), (403, 166168), (806, 83084), (1612, 41542), (3224, 20771)]