261854255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{503}}^1\times {\mathrm{8009}}^1$

素因数の和:8530

約数の個数: 16

約数和(自身を含む): 339111360

約数和(自身を除く): 77257105

約数列:

[1, 5, 13, 65, 503, 2515, 6539, 8009, 32695, 40045, 104117, 520585, 4028527, 20142635, 52370851, 261854255]

約数ペア:

[(1, 261854255), (5, 52370851), (13, 20142635), (65, 4028527), (503, 520585), (2515, 104117), (6539, 40045), (8009, 32695)]