257923475

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{331}}^1\times {\mathrm{439}}^1$

素因数の和:851

約数の個数: 24

約数和(自身を含む): 326050560

約数和(自身を除く): 68127085

約数列:

[1, 5, 25, 71, 331, 355, 439, 1655, 1775, 2195, 8275, 10975, 23501, 31169, 117505, 145309, 155845, 587525, 726545, 779225, 3632725, 10316939, 51584695, 257923475]

約数ペア:

[(1, 257923475), (5, 51584695), (25, 10316939), (71, 3632725), (331, 779225), (355, 726545), (439, 587525), (1655, 155845), (1775, 145309), (2195, 117505), (8275, 31169), (10975, 23501)]