278906037

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1\times {\mathrm{277}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 393487872

約数和(自身を除く): 114581835

約数列:

[1, 3, 37, 47, 111, 141, 193, 277, 579, 831, 1739, 5217, 7141, 9071, 10249, 13019, 21423, 27213, 30747, 39057, 53461, 160383, 335627, 481703, 1006881, 1445109, 1978057, 2512667, 5934171, 7538001, 92968679, 278906037]

約数ペア:

[(1, 278906037), (3, 92968679), (37, 7538001), (47, 5934171), (111, 2512667), (141, 1978057), (193, 1445109), (277, 1006881), (579, 481703), (831, 335627), (1739, 160383), (5217, 53461), (7141, 39057), (9071, 30747), (10249, 27213), (13019, 21423)]