28771300

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{6691}}^1$

素因数の和:6748

約数の個数: 36

約数和(自身を含む): 63895216

約数和(自身を除く): 35123916

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 6691, 13382, 26764, 33455, 66910, 133820, 167275, 287713, 334550, 575426, 669100, 1150852, 1438565, 2877130, 5754260, 7192825, 14385650, 28771300]

約数ペア:

[(1, 28771300), (2, 14385650), (4, 7192825), (5, 5754260), (10, 2877130), (20, 1438565), (25, 1150852), (43, 669100), (50, 575426), (86, 334550), (100, 287713), (172, 167275), (215, 133820), (430, 66910), (860, 33455), (1075, 26764), (2150, 13382), (4300, 6691)]