128012200

素因数分解:

$2^3\times 5^2\times {\mathrm{640061}}^1$

素因数の和:640077

約数の個数: 24

約数和(自身を含む): 297628830

約数和(自身を除く): 169616630

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 640061, 1280122, 2560244, 3200305, 5120488, 6400610, 12801220, 16001525, 25602440, 32003050, 64006100, 128012200]

約数ペア:

[(1, 128012200), (2, 64006100), (4, 32003050), (5, 25602440), (8, 16001525), (10, 12801220), (20, 6400610), (25, 5120488), (40, 3200305), (50, 2560244), (100, 1280122), (200, 640061)]