288855

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{131}}^1$

素因数の和:156

約数の個数: 36

約数和(自身を含む): 586872

約数和(自身を除く): 298017

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 131, 147, 245, 315, 393, 441, 655, 735, 917, 1179, 1965, 2205, 2751, 4585, 5895, 6419, 8253, 13755, 19257, 32095, 41265, 57771, 96285, 288855]

約数ペア:

[(1, 288855), (3, 96285), (5, 57771), (7, 41265), (9, 32095), (15, 19257), (21, 13755), (35, 8253), (45, 6419), (49, 5895), (63, 4585), (105, 2751), (131, 2205), (147, 1965), (245, 1179), (315, 917), (393, 735), (441, 655)]