64982975

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{439}}^1$

素因数の和:671

約数の個数: 24

約数和(自身を含む): 83804160

約数和(自身を除く): 18821185

約数列:

[1, 5, 25, 31, 155, 191, 439, 775, 955, 2195, 4775, 5921, 10975, 13609, 29605, 68045, 83849, 148025, 340225, 419245, 2096225, 2599319, 12996595, 64982975]

約数ペア:

[(1, 64982975), (5, 12996595), (25, 2599319), (31, 2096225), (155, 419245), (191, 340225), (439, 148025), (775, 83849), (955, 68045), (2195, 29605), (4775, 13609), (5921, 10975)]