257112854

素因数分解:

$2^1\times {\mathrm{239}}^1\times {\mathrm{251}}^1\times {\mathrm{2143}}^1$

素因数の和:2635

約数の個数: 16

約数和(自身を含む): 389007360

約数和(自身を除く): 131894506

約数列:

[1, 2, 239, 251, 478, 502, 2143, 4286, 59989, 119978, 512177, 537893, 1024354, 1075786, 128556427, 257112854]

約数ペア:

[(1, 257112854), (2, 128556427), (239, 1075786), (251, 1024354), (478, 537893), (502, 512177), (2143, 119978), (4286, 59989)]