65541220

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{20873}}^1$

素因数の和:21039

約数の個数: 24

約数和(自身を含む): 138519864

約数和(自身を除く): 72978644

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 20873, 41746, 83492, 104365, 208730, 417460, 3277061, 6554122, 13108244, 16385305, 32770610, 65541220]

約数ペア:

[(1, 65541220), (2, 32770610), (4, 16385305), (5, 13108244), (10, 6554122), (20, 3277061), (157, 417460), (314, 208730), (628, 104365), (785, 83492), (1570, 41746), (3140, 20873)]