20430175

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{907}}^1$

素因数の和:987

約数の個数: 24

約数和(自身を含む): 27359856

約数和(自身を除く): 6929681

約数列:

[1, 5, 17, 25, 53, 85, 265, 425, 901, 907, 1325, 4505, 4535, 15419, 22525, 22675, 48071, 77095, 240355, 385475, 817207, 1201775, 4086035, 20430175]

約数ペア:

[(1, 20430175), (5, 4086035), (17, 1201775), (25, 817207), (53, 385475), (85, 240355), (265, 77095), (425, 48071), (901, 22675), (907, 22525), (1325, 15419), (4505, 4535)]