20443900

素因数分解:

$2^2\times 5^2\times {\mathrm{204439}}^1$

素因数の和:204453

約数の個数: 18

約数和(自身を含む): 44363480

約数和(自身を除く): 23919580

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 204439, 408878, 817756, 1022195, 2044390, 4088780, 5110975, 10221950, 20443900]

約数ペア:

[(1, 20443900), (2, 10221950), (4, 5110975), (5, 4088780), (10, 2044390), (20, 1022195), (25, 817756), (50, 408878), (100, 204439)]