81315

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1$

素因数の和:163

約数の個数: 24

約数和(自身を含む): 152880

約数和(自身を除く): 71565

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 139, 195, 417, 585, 695, 1251, 1807, 2085, 5421, 6255, 9035, 16263, 27105, 81315]

約数ペア:

[(1, 81315), (3, 27105), (5, 16263), (9, 9035), (13, 6255), (15, 5421), (39, 2085), (45, 1807), (65, 1251), (117, 695), (139, 585), (195, 417)]