257172688

素因数分解:

$2^4\times {\mathrm{1481}}^1\times {\mathrm{10853}}^1$

素因数の和:12342

約数の個数: 20

約数和(自身を含む): 498654468

約数和(自身を除く): 241481780

約数列:

[1, 2, 4, 8, 16, 1481, 2962, 5924, 10853, 11848, 21706, 23696, 43412, 86824, 173648, 16073293, 32146586, 64293172, 128586344, 257172688]

約数ペア:

[(1, 257172688), (2, 128586344), (4, 64293172), (8, 32146586), (16, 16073293), (1481, 173648), (2962, 86824), (5924, 43412), (10853, 23696), (11848, 21706)]