64885325

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2887}}^1$

素因数の和:2957

約数の個数: 24

約数和(自身を含む): 85946880

約数和(自身を除く): 21061555

約数列:

[1, 5, 25, 29, 31, 145, 155, 725, 775, 899, 2887, 4495, 14435, 22475, 72175, 83723, 89497, 418615, 447485, 2093075, 2237425, 2595413, 12977065, 64885325]

約数ペア:

[(1, 64885325), (5, 12977065), (25, 2595413), (29, 2237425), (31, 2093075), (145, 447485), (155, 418615), (725, 89497), (775, 83723), (899, 72175), (2887, 22475), (4495, 14435)]