1291238845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{156419}}^1$

素因数の和:156564

約数の個数: 16

約数和(自身を含む): 1681827840

約数和(自身を除く): 390588995

約数列:

[1, 5, 13, 65, 127, 635, 1651, 8255, 156419, 782095, 2033447, 10167235, 19865213, 99326065, 258247769, 1291238845]

約数ペア:

[(1, 1291238845), (5, 258247769), (13, 99326065), (65, 19865213), (127, 10167235), (635, 2033447), (1651, 782095), (8255, 156419)]