28331945

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 38724480

約数和(自身を除く): 10392535

約数列:

[1, 5, 17, 19, 53, 85, 95, 265, 323, 331, 901, 1007, 1615, 1655, 4505, 5035, 5627, 6289, 17119, 17543, 28135, 31445, 85595, 87715, 106913, 298231, 333317, 534565, 1491155, 1666585, 5666389, 28331945]

約数ペア:

[(1, 28331945), (5, 5666389), (17, 1666585), (19, 1491155), (53, 534565), (85, 333317), (95, 298231), (265, 106913), (323, 87715), (331, 85595), (901, 31445), (1007, 28135), (1615, 17543), (1655, 17119), (4505, 6289), (5035, 5627)]