78891520

素因数分解:

$2^9\times 5^1\times {\mathrm{30817}}^1$

素因数の和:30840

約数の個数: 40

約数和(自身を含む): 189160884

約数和(自身を除く): 110269364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 30817, 61634, 123268, 154085, 246536, 308170, 493072, 616340, 986144, 1232680, 1972288, 2465360, 3944576, 4930720, 7889152, 9861440, 15778304, 19722880, 39445760, 78891520]

約数ペア:

[(1, 78891520), (2, 39445760), (4, 19722880), (5, 15778304), (8, 9861440), (10, 7889152), (16, 4930720), (20, 3944576), (32, 2465360), (40, 1972288), (64, 1232680), (80, 986144), (128, 616340), (160, 493072), (256, 308170), (320, 246536), (512, 154085), (640, 123268), (1280, 61634), (2560, 30817)]