9158990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 17146080

約数和(自身を除く): 7987090

約数列:

[1, 2, 5, 10, 41, 82, 89, 178, 205, 251, 410, 445, 502, 890, 1255, 2510, 3649, 7298, 10291, 18245, 20582, 22339, 36490, 44678, 51455, 102910, 111695, 223390, 915899, 1831798, 4579495, 9158990]

約数ペア:

[(1, 9158990), (2, 4579495), (5, 1831798), (10, 915899), (41, 223390), (82, 111695), (89, 102910), (178, 51455), (205, 44678), (251, 36490), (410, 22339), (445, 20582), (502, 18245), (890, 10291), (1255, 7298), (2510, 3649)]