256403398

素因数分解:

$2^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1\times {\mathrm{4877}}^1$

素因数の和:5247

約数の個数: 16

約数和(自身を含む): 390083904

約数和(自身を除く): 133680506

約数列:

[1, 2, 97, 194, 271, 542, 4877, 9754, 26287, 52574, 473069, 946138, 1321667, 2643334, 128201699, 256403398]

約数ペア:

[(1, 256403398), (2, 128201699), (97, 2643334), (194, 1321667), (271, 946138), (542, 473069), (4877, 52574), (9754, 26287)]