28506315

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1559}}^1$

素因数の和:1643

約数の個数: 32

約数和(自身を含む): 48522240

約数和(自身を除く): 20015925

約数列:

[1, 3, 5, 15, 23, 53, 69, 115, 159, 265, 345, 795, 1219, 1559, 3657, 4677, 6095, 7795, 18285, 23385, 35857, 82627, 107571, 179285, 247881, 413135, 537855, 1239405, 1900421, 5701263, 9502105, 28506315]

約数ペア:

[(1, 28506315), (3, 9502105), (5, 5701263), (15, 1900421), (23, 1239405), (53, 537855), (69, 413135), (115, 247881), (159, 179285), (265, 107571), (345, 82627), (795, 35857), (1219, 23385), (1559, 18285), (3657, 7795), (4677, 6095)]