78655779

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{15919}}^1$

素因数の和:15992

約数の個数: 20

約数和(自身を含む): 119431840

約数和(自身を除く): 40776061

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4941, 15919, 47757, 143271, 429813, 971059, 1289439, 2913177, 8739531, 26218593, 78655779]

約数ペア:

[(1, 78655779), (3, 26218593), (9, 8739531), (27, 2913177), (61, 1289439), (81, 971059), (183, 429813), (549, 143271), (1647, 47757), (4941, 15919)]