80972515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{18593}}^1$

素因数の和:18678

約数の個数: 16

約数和(自身を含む): 106208928

約数和(自身を除く): 25236413

約数列:

[1, 5, 13, 65, 67, 335, 871, 4355, 18593, 92965, 241709, 1208545, 1245731, 6228655, 16194503, 80972515]

約数ペア:

[(1, 80972515), (5, 16194503), (13, 6228655), (65, 1245731), (67, 1208545), (335, 241709), (871, 92965), (4355, 18593)]