87991040

素因数分解:

$2^8\times 5^1\times {\mathrm{68743}}^1$

素因数の和:68764

約数の個数: 36

約数和(自身を含む): 210769104

約数和(自身を除く): 122778064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 68743, 137486, 274972, 343715, 549944, 687430, 1099888, 1374860, 2199776, 2749720, 4399552, 5499440, 8799104, 10998880, 17598208, 21997760, 43995520, 87991040]

約数ペア:

[(1, 87991040), (2, 43995520), (4, 21997760), (5, 17598208), (8, 10998880), (10, 8799104), (16, 5499440), (20, 4399552), (32, 2749720), (40, 2199776), (64, 1374860), (80, 1099888), (128, 687430), (160, 549944), (256, 343715), (320, 274972), (640, 137486), (1280, 68743)]