728644

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{491}}^1$

素因数の和:555

約数の個数: 24

約数和(自身を含む): 1487808

約数和(自身を除く): 759164

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 491, 742, 982, 1484, 1964, 3437, 6874, 13748, 26023, 52046, 104092, 182161, 364322, 728644]

約数ペア:

[(1, 728644), (2, 364322), (4, 182161), (7, 104092), (14, 52046), (28, 26023), (53, 13748), (106, 6874), (212, 3437), (371, 1964), (491, 1484), (742, 982)]