220664765

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{677}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 288990720

約数和(自身を除く): 68325955

約数列:

[1, 5, 19, 47, 73, 95, 235, 365, 677, 893, 1387, 3385, 3431, 4465, 6935, 12863, 17155, 31819, 49421, 64315, 65189, 159095, 247105, 325945, 604561, 938999, 2322787, 3022805, 4694995, 11613935, 44132953, 220664765]

約数ペア:

[(1, 220664765), (5, 44132953), (19, 11613935), (47, 4694995), (73, 3022805), (95, 2322787), (235, 938999), (365, 604561), (677, 325945), (893, 247105), (1387, 159095), (3385, 65189), (3431, 64315), (4465, 49421), (6935, 31819), (12863, 17155)]