261195585

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{12889}}^1$

素因数の和:13097

約数の個数: 32

約数和(自身を含む): 480126720

約数和(自身を除く): 218931135

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 193, 579, 965, 1351, 2895, 4053, 6755, 12889, 20265, 38667, 64445, 90223, 193335, 270669, 451115, 1353345, 2487577, 7462731, 12437885, 17413039, 37313655, 52239117, 87065195, 261195585]

約数ペア:

[(1, 261195585), (3, 87065195), (5, 52239117), (7, 37313655), (15, 17413039), (21, 12437885), (35, 7462731), (105, 2487577), (193, 1353345), (579, 451115), (965, 270669), (1351, 193335), (2895, 90223), (4053, 64445), (6755, 38667), (12889, 20265)]