20185040

素因数分解:

$2^4\times 5^1\times {\mathrm{252313}}^1$

素因数の和:252326

約数の個数: 20

約数和(自身を含む): 46930404

約数和(自身を除く): 26745364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252313, 504626, 1009252, 1261565, 2018504, 2523130, 4037008, 5046260, 10092520, 20185040]

約数ペア:

[(1, 20185040), (2, 10092520), (4, 5046260), (5, 4037008), (8, 2523130), (10, 2018504), (16, 1261565), (20, 1009252), (40, 504626), (80, 252313)]