81131895

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{46229}}^1$

素因数の和:46256

約数の個数: 32

約数和(自身を含む): 155332800

約数和(自身を除く): 74200905

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 46229, 138687, 231145, 416061, 600977, 693435, 1248183, 1802931, 2080305, 3004885, 5408793, 6240915, 9014655, 16226379, 27043965, 81131895]

約数ペア:

[(1, 81131895), (3, 27043965), (5, 16226379), (9, 9014655), (13, 6240915), (15, 5408793), (27, 3004885), (39, 2080305), (45, 1802931), (65, 1248183), (117, 693435), (135, 600977), (195, 416061), (351, 231145), (585, 138687), (1755, 46229)]