215513155

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{4129}}^1$

素因数の和:4231

約数の個数: 32

約数和(自身を含む): 308064960

約数和(自身を除く): 92551805

約数列:

[1, 5, 11, 13, 55, 65, 73, 143, 365, 715, 803, 949, 4015, 4129, 4745, 10439, 20645, 45419, 52195, 53677, 227095, 268385, 301417, 590447, 1507085, 2952235, 3315587, 3918421, 16577935, 19592105, 43102631, 215513155]

約数ペア:

[(1, 215513155), (5, 43102631), (11, 19592105), (13, 16577935), (55, 3918421), (65, 3315587), (73, 2952235), (143, 1507085), (365, 590447), (715, 301417), (803, 268385), (949, 227095), (4015, 53677), (4129, 52195), (4745, 45419), (10439, 20645)]