64878080

素因数分解:

$2^9\times 5^1\times {\mathrm{25343}}^1$

素因数の和:25366

約数の個数: 40

約数和(自身を含む): 155561472

約数和(自身を除く): 90683392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 25343, 50686, 101372, 126715, 202744, 253430, 405488, 506860, 810976, 1013720, 1621952, 2027440, 3243904, 4054880, 6487808, 8109760, 12975616, 16219520, 32439040, 64878080]

約数ペア:

[(1, 64878080), (2, 32439040), (4, 16219520), (5, 12975616), (8, 8109760), (10, 6487808), (16, 4054880), (20, 3243904), (32, 2027440), (40, 1621952), (64, 1013720), (80, 810976), (128, 506860), (160, 405488), (256, 253430), (320, 202744), (512, 126715), (640, 101372), (1280, 50686), (2560, 25343)]