180420793281

素因数分解:

$3^4\times {\mathrm{257}}^1\times {\mathrm{8666993}}^1$

素因数の和:8667262

約数の個数: 20

約数和(自身を含む): 270566218692

約数和(自身を除く): 90145425411

約数列:

[1, 3, 9, 27, 81, 257, 771, 2313, 6939, 20817, 8666993, 26000979, 78002937, 234008811, 702026433, 2227417201, 6682251603, 20046754809, 60140264427, 180420793281]

約数ペア:

[(1, 180420793281), (3, 60140264427), (9, 20046754809), (27, 6682251603), (81, 2227417201), (257, 702026433), (771, 234008811), (2313, 78002937), (6939, 26000979), (20817, 8666993)]