19207120

素因数分解:

$2^4\times 5^1\times {\mathrm{240089}}^1$

素因数の和:240102

約数の個数: 20

約数和(自身を含む): 44656740

約数和(自身を除く): 25449620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 240089, 480178, 960356, 1200445, 1920712, 2400890, 3841424, 4801780, 9603560, 19207120]

約数ペア:

[(1, 19207120), (2, 9603560), (4, 4801780), (5, 3841424), (8, 2400890), (10, 1920712), (16, 1200445), (20, 960356), (40, 480178), (80, 240089)]