28123520

素因数分解:

$2^7\times 5^1\times {\mathrm{43943}}^1$

素因数の和:43962

約数の個数: 32

約数和(自身を含む): 67234320

約数和(自身を除く): 39110800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 43943, 87886, 175772, 219715, 351544, 439430, 703088, 878860, 1406176, 1757720, 2812352, 3515440, 5624704, 7030880, 14061760, 28123520]

約数ペア:

[(1, 28123520), (2, 14061760), (4, 7030880), (5, 5624704), (8, 3515440), (10, 2812352), (16, 1757720), (20, 1406176), (32, 878860), (40, 703088), (64, 439430), (80, 351544), (128, 219715), (160, 175772), (320, 87886), (640, 43943)]