180720081

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{69481}}^1$

素因数の和:69521

約数の個数: 18

約数和(自身を含む): 277302662

約数和(自身を除く): 96582581

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 69481, 208443, 625329, 1181177, 3543531, 10630593, 20080009, 60240027, 180720081]

約数ペア:

[(1, 180720081), (3, 60240027), (9, 20080009), (17, 10630593), (51, 3543531), (153, 1181177), (289, 625329), (867, 208443), (2601, 69481)]