278875281

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{31121}}^1$

素因数の和:31256

約数の個数: 16

約数和(自身を含む): 388402560

約数和(自身を除く): 109527279

約数列:

[1, 3, 29, 87, 103, 309, 2987, 8961, 31121, 93363, 902509, 2707527, 3205463, 9616389, 92958427, 278875281]

約数ペア:

[(1, 278875281), (3, 92958427), (29, 9616389), (87, 3205463), (103, 2707527), (309, 902509), (2987, 93363), (8961, 31121)]