20195650

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{7621}}^1$

素因数の和:7686

約数の個数: 24

約数和(自身を含む): 38277684

約数和(自身を除く): 18082034

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 265, 530, 1325, 2650, 7621, 15242, 38105, 76210, 190525, 381050, 403913, 807826, 2019565, 4039130, 10097825, 20195650]

約数ペア:

[(1, 20195650), (2, 10097825), (5, 4039130), (10, 2019565), (25, 807826), (50, 403913), (53, 381050), (106, 190525), (265, 76210), (530, 38105), (1325, 15242), (2650, 7621)]