18737870

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{317}}^1$

素因数の和:604

約数の個数: 32

約数和(自身を含む): 35443008

約数和(自身を除く): 16705138

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 257, 317, 514, 634, 1285, 1585, 2570, 3170, 5911, 7291, 11822, 14582, 29555, 36455, 59110, 72910, 81469, 162938, 407345, 814690, 1873787, 3747574, 9368935, 18737870]

約数ペア:

[(1, 18737870), (2, 9368935), (5, 3747574), (10, 1873787), (23, 814690), (46, 407345), (115, 162938), (230, 81469), (257, 72910), (317, 59110), (514, 36455), (634, 29555), (1285, 14582), (1585, 11822), (2570, 7291), (3170, 5911)]