256840208

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{517823}}^1$

素因数の和:517862

約数の個数: 20

約数和(自身を含む): 513681408

約数和(自身を除く): 256841200

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 517823, 1035646, 2071292, 4142584, 8285168, 16052513, 32105026, 64210052, 128420104, 256840208]

約数ペア:

[(1, 256840208), (2, 128420104), (4, 64210052), (8, 32105026), (16, 16052513), (31, 8285168), (62, 4142584), (124, 2071292), (248, 1035646), (496, 517823)]