81047565

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{25367}}^1$

素因数の和:25449

約数の個数: 24

約数和(自身を含む): 142466688

約数和(自身を除く): 61419123

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 25367, 76101, 126835, 228303, 380505, 1141515, 1801057, 5403171, 9005285, 16209513, 27015855, 81047565]

約数ペア:

[(1, 81047565), (3, 27015855), (5, 16209513), (9, 9005285), (15, 5403171), (45, 1801057), (71, 1141515), (213, 380505), (355, 228303), (639, 126835), (1065, 76101), (3195, 25367)]