277340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{283}}^1$

素因数の和:306

約数の個数: 36

約数和(自身を含む): 679896

約数和(自身を除く): 402556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 283, 490, 566, 980, 1132, 1415, 1981, 2830, 3962, 5660, 7924, 9905, 13867, 19810, 27734, 39620, 55468, 69335, 138670, 277340]

約数ペア:

[(1, 277340), (2, 138670), (4, 69335), (5, 55468), (7, 39620), (10, 27734), (14, 19810), (20, 13867), (28, 9905), (35, 7924), (49, 5660), (70, 3962), (98, 2830), (140, 1981), (196, 1415), (245, 1132), (283, 980), (490, 566)]