1780939975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{4190447}}^1$

素因数の和:4190474

約数の個数: 12

約数和(自身を含む): 2338269984

約数和(自身を除く): 557330009

約数列:

[1, 5, 17, 25, 85, 425, 4190447, 20952235, 71237599, 104761175, 356187995, 1780939975]

約数ペア:

[(1, 1780939975), (5, 356187995), (17, 104761175), (25, 71237599), (85, 20952235), (425, 4190447)]