28206495

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{113}}^1$

素因数の和:213

約数の個数: 48

約数和(自身を含む): 51792480

約数和(自身を除く): 23585985

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 113, 129, 135, 215, 339, 387, 565, 645, 1017, 1161, 1695, 1849, 1935, 3051, 4859, 5085, 5547, 5805, 9245, 14577, 15255, 16641, 24295, 27735, 43731, 49923, 72885, 83205, 131193, 208937, 218655, 249615, 626811, 655965, 1044685, 1880433, 3134055, 5641299, 9402165, 28206495]

約数ペア:

[(1, 28206495), (3, 9402165), (5, 5641299), (9, 3134055), (15, 1880433), (27, 1044685), (43, 655965), (45, 626811), (113, 249615), (129, 218655), (135, 208937), (215, 131193), (339, 83205), (387, 72885), (565, 49923), (645, 43731), (1017, 27735), (1161, 24295), (1695, 16641), (1849, 15255), (1935, 14577), (3051, 9245), (4859, 5805), (5085, 5547)]