128935490

素因数分解:

$2^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{72031}}^1$

素因数の和:72217

約数の個数: 16

約数和(自身を含む): 233383680

約数和(自身を除く): 104448190

約数列:

[1, 2, 5, 10, 179, 358, 895, 1790, 72031, 144062, 360155, 720310, 12893549, 25787098, 64467745, 128935490]

約数ペア:

[(1, 128935490), (2, 64467745), (5, 25787098), (10, 12893549), (179, 720310), (358, 360155), (895, 144062), (1790, 72031)]