78880239

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{257}}^1\times {\mathrm{509}}^1$

素因数の和:839

約数の個数: 24

約数和(自身を含む): 116316720

約数和(自身を除く): 37436481

約数列:

[1, 3, 9, 67, 201, 257, 509, 603, 771, 1527, 2313, 4581, 17219, 34103, 51657, 102309, 130813, 154971, 306927, 392439, 1177317, 8764471, 26293413, 78880239]

約数ペア:

[(1, 78880239), (3, 26293413), (9, 8764471), (67, 1177317), (201, 392439), (257, 306927), (509, 154971), (603, 130813), (771, 102309), (1527, 51657), (2313, 34103), (4581, 17219)]