163842760

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{16319}}^1$

素因数の和:16581

約数の個数: 32

約数和(自身を含む): 370137600

約数和(自身を除く): 206294840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 10040, 16319, 32638, 65276, 81595, 130552, 163190, 326380, 652760, 4096069, 8192138, 16384276, 20480345, 32768552, 40960690, 81921380, 163842760]

約数ペア:

[(1, 163842760), (2, 81921380), (4, 40960690), (5, 32768552), (8, 20480345), (10, 16384276), (20, 8192138), (40, 4096069), (251, 652760), (502, 326380), (1004, 163190), (1255, 130552), (2008, 81595), (2510, 65276), (5020, 32638), (10040, 16319)]