201777980

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{121553}}^1$

素因数の和:121645

約数の個数: 24

約数和(自身を含む): 428842512

約数和(自身を除く): 227064532

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 121553, 243106, 486212, 607765, 1215530, 2431060, 10088899, 20177798, 40355596, 50444495, 100888990, 201777980]

約数ペア:

[(1, 201777980), (2, 100888990), (4, 50444495), (5, 40355596), (10, 20177798), (20, 10088899), (83, 2431060), (166, 1215530), (332, 607765), (415, 486212), (830, 243106), (1660, 121553)]