18440560

素因数分解:

$2^4\times 5^1\times {\mathrm{230507}}^1$

素因数の和:230520

約数の個数: 20

約数和(自身を含む): 42874488

約数和(自身を除く): 24433928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 230507, 461014, 922028, 1152535, 1844056, 2305070, 3688112, 4610140, 9220280, 18440560]

約数ペア:

[(1, 18440560), (2, 9220280), (4, 4610140), (5, 3688112), (8, 2305070), (10, 1844056), (16, 1152535), (20, 922028), (40, 461014), (80, 230507)]