18907120

素因数分解:

$2^4\times 5^1\times {\mathrm{236339}}^1$

素因数の和:236352

約数の個数: 20

約数和(自身を含む): 43959240

約数和(自身を除く): 25052120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 236339, 472678, 945356, 1181695, 1890712, 2363390, 3781424, 4726780, 9453560, 18907120]

約数ペア:

[(1, 18907120), (2, 9453560), (4, 4726780), (5, 3781424), (8, 2363390), (10, 1890712), (16, 1181695), (20, 945356), (40, 472678), (80, 236339)]