55278220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:287

約数の個数: 96

約数和(自身を含む): 133056000

約数和(自身を除く): 77777780

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 43, 68, 76, 85, 86, 95, 170, 172, 190, 199, 215, 323, 340, 380, 398, 430, 646, 731, 796, 817, 860, 995, 1292, 1462, 1615, 1634, 1990, 2924, 3230, 3268, 3383, 3655, 3781, 3980, 4085, 6460, 6766, 7310, 7562, 8170, 8557, 13532, 13889, 14620, 15124, 16340, 16915, 17114, 18905, 27778, 33830, 34228, 37810, 42785, 55556, 64277, 67660, 69445, 75620, 85570, 128554, 138890, 145469, 162583, 171140, 257108, 277780, 290938, 321385, 325166, 581876, 642770, 650332, 727345, 812915, 1285540, 1454690, 1625830, 2763911, 2909380, 3251660, 5527822, 11055644, 13819555, 27639110, 55278220]

約数ペア:

[(1, 55278220), (2, 27639110), (4, 13819555), (5, 11055644), (10, 5527822), (17, 3251660), (19, 2909380), (20, 2763911), (34, 1625830), (38, 1454690), (43, 1285540), (68, 812915), (76, 727345), (85, 650332), (86, 642770), (95, 581876), (170, 325166), (172, 321385), (190, 290938), (199, 277780), (215, 257108), (323, 171140), (340, 162583), (380, 145469), (398, 138890), (430, 128554), (646, 85570), (731, 75620), (796, 69445), (817, 67660), (860, 64277), (995, 55556), (1292, 42785), (1462, 37810), (1615, 34228), (1634, 33830), (1990, 27778), (2924, 18905), (3230, 17114), (3268, 16915), (3383, 16340), (3655, 15124), (3781, 14620), (3980, 13889), (4085, 13532), (6460, 8557), (6766, 8170), (7310, 7562)]