81606285

素因数分解:

$3^4\times 5^1\times {\mathrm{201497}}^1$

素因数の和:201514

約数の個数: 20

約数和(自身を含む): 146287548

約数和(自身を除く): 64681263

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 201497, 604491, 1007485, 1813473, 3022455, 5440419, 9067365, 16321257, 27202095, 81606285]

約数ペア:

[(1, 81606285), (3, 27202095), (5, 16321257), (9, 9067365), (15, 5440419), (27, 3022455), (45, 1813473), (81, 1007485), (135, 604491), (405, 201497)]