18628175

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{827}}^1$

素因数の和:907

約数の個数: 24

約数和(自身を含む): 24949296

約数和(自身を除く): 6321121

約数列:

[1, 5, 17, 25, 53, 85, 265, 425, 827, 901, 1325, 4135, 4505, 14059, 20675, 22525, 43831, 70295, 219155, 351475, 745127, 1095775, 3725635, 18628175]

約数ペア:

[(1, 18628175), (5, 3725635), (17, 1095775), (25, 745127), (53, 351475), (85, 219155), (265, 70295), (425, 43831), (827, 22525), (901, 20675), (1325, 14059), (4135, 4505)]