28328715

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1949}}^1$

素因数の和:1996

約数の個数: 48

約数和(自身を含む): 54756000

約数和(自身を除く): 26427285

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 51, 57, 85, 95, 153, 171, 255, 285, 323, 765, 855, 969, 1615, 1949, 2907, 4845, 5847, 9745, 14535, 17541, 29235, 33133, 37031, 87705, 99399, 111093, 165665, 185155, 298197, 333279, 496995, 555465, 629527, 1490985, 1666395, 1888581, 3147635, 5665743, 9442905, 28328715]

約数ペア:

[(1, 28328715), (3, 9442905), (5, 5665743), (9, 3147635), (15, 1888581), (17, 1666395), (19, 1490985), (45, 629527), (51, 555465), (57, 496995), (85, 333279), (95, 298197), (153, 185155), (171, 165665), (255, 111093), (285, 99399), (323, 87705), (765, 37031), (855, 33133), (969, 29235), (1615, 17541), (1949, 14535), (2907, 9745), (4845, 5847)]