991990142

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{881}}^1$

素因数の和:1065

約数の個数: 64

約数和(自身を含む): 1820786688

約数和(自身を除く): 828796546

約数列:

[1, 2, 11, 13, 22, 26, 31, 62, 127, 143, 254, 286, 341, 403, 682, 806, 881, 1397, 1651, 1762, 2794, 3302, 3937, 4433, 7874, 8866, 9691, 11453, 18161, 19382, 22906, 27311, 36322, 43307, 51181, 54622, 86614, 102362, 111887, 125983, 223774, 251966, 300421, 355043, 562991, 600842, 710086, 1125982, 1230757, 1454531, 2461514, 2909062, 3468497, 3905473, 6936994, 7810946, 15999841, 31999682, 38153467, 45090461, 76306934, 90180922, 495995071, 991990142]

約数ペア:

[(1, 991990142), (2, 495995071), (11, 90180922), (13, 76306934), (22, 45090461), (26, 38153467), (31, 31999682), (62, 15999841), (127, 7810946), (143, 6936994), (254, 3905473), (286, 3468497), (341, 2909062), (403, 2461514), (682, 1454531), (806, 1230757), (881, 1125982), (1397, 710086), (1651, 600842), (1762, 562991), (2794, 355043), (3302, 300421), (3937, 251966), (4433, 223774), (7874, 125983), (8866, 111887), (9691, 102362), (11453, 86614), (18161, 54622), (19382, 51181), (22906, 43307), (27311, 36322)]