205123515

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{3851}}^1$

素因数の和:3979

約数の個数: 32

約数和(自身を含む): 339469056

約数和(自身を除く): 134345541

約数列:

[1, 3, 5, 15, 53, 67, 159, 201, 265, 335, 795, 1005, 3551, 3851, 10653, 11553, 17755, 19255, 53265, 57765, 204103, 258017, 612309, 774051, 1020515, 1290085, 3061545, 3870255, 13674901, 41024703, 68374505, 205123515]

約数ペア:

[(1, 205123515), (3, 68374505), (5, 41024703), (15, 13674901), (53, 3870255), (67, 3061545), (159, 1290085), (201, 1020515), (265, 774051), (335, 612309), (795, 258017), (1005, 204103), (3551, 57765), (3851, 53265), (10653, 19255), (11553, 17755)]