81870795

素因数分解:

$3^2\times 5^1\times {\mathrm{503}}^1\times {\mathrm{3617}}^1$

素因数の和:4131

約数の個数: 24

約数和(自身を含む): 142230816

約数和(自身を除く): 60360021

約数列:

[1, 3, 5, 9, 15, 45, 503, 1509, 2515, 3617, 4527, 7545, 10851, 18085, 22635, 32553, 54255, 162765, 1819351, 5458053, 9096755, 16374159, 27290265, 81870795]

約数ペア:

[(1, 81870795), (3, 27290265), (5, 16374159), (9, 9096755), (15, 5458053), (45, 1819351), (503, 162765), (1509, 54255), (2515, 32553), (3617, 22635), (4527, 18085), (7545, 10851)]