318639136

素因数分解:

$2^5\times {\mathrm{67}}^1\times {\mathrm{331}}^1\times {\mathrm{449}}^1$

素因数の和:857

約数の個数: 48

約数和(自身を含む): 640029600

約数和(自身を除く): 321390464

約数列:

[1, 2, 4, 8, 16, 32, 67, 134, 268, 331, 449, 536, 662, 898, 1072, 1324, 1796, 2144, 2648, 3592, 5296, 7184, 10592, 14368, 22177, 30083, 44354, 60166, 88708, 120332, 148619, 177416, 240664, 297238, 354832, 481328, 594476, 709664, 962656, 1188952, 2377904, 4755808, 9957473, 19914946, 39829892, 79659784, 159319568, 318639136]

約数ペア:

[(1, 318639136), (2, 159319568), (4, 79659784), (8, 39829892), (16, 19914946), (32, 9957473), (67, 4755808), (134, 2377904), (268, 1188952), (331, 962656), (449, 709664), (536, 594476), (662, 481328), (898, 354832), (1072, 297238), (1324, 240664), (1796, 177416), (2144, 148619), (2648, 120332), (3592, 88708), (5296, 60166), (7184, 44354), (10592, 30083), (14368, 22177)]