68481505

素因数分解:

$5^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1\times {\mathrm{389}}^1$

素因数の和:788

約数の個数: 16

約数和(自身を含む): 83313360

約数和(自身を除く): 14831855

約数列:

[1, 5, 137, 257, 389, 685, 1285, 1945, 35209, 53293, 99973, 176045, 266465, 499865, 13696301, 68481505]

約数ペア:

[(1, 68481505), (5, 13696301), (137, 499865), (257, 266465), (389, 176045), (685, 99973), (1285, 53293), (1945, 35209)]