205276040

素因数分解:

$2^3\times 5^1\times {\mathrm{743}}^1\times {\mathrm{6907}}^1$

素因数の和:7661

約数の個数: 32

約数和(自身を含む): 462559680

約数和(自身を除く): 257283640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 743, 1486, 2972, 3715, 5944, 6907, 7430, 13814, 14860, 27628, 29720, 34535, 55256, 69070, 138140, 276280, 5131901, 10263802, 20527604, 25659505, 41055208, 51319010, 102638020, 205276040]

約数ペア:

[(1, 205276040), (2, 102638020), (4, 51319010), (5, 41055208), (8, 25659505), (10, 20527604), (20, 10263802), (40, 5131901), (743, 276280), (1486, 138140), (2972, 69070), (3715, 55256), (5944, 34535), (6907, 29720), (7430, 27628), (13814, 14860)]