4000220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{28573}}^1$

素因数の和:28589

約数の個数: 24

約数和(自身を含む): 9600864

約数和(自身を除く): 5600644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 28573, 57146, 114292, 142865, 200011, 285730, 400022, 571460, 800044, 1000055, 2000110, 4000220]

約数ペア:

[(1, 4000220), (2, 2000110), (4, 1000055), (5, 800044), (7, 571460), (10, 400022), (14, 285730), (20, 200011), (28, 142865), (35, 114292), (70, 57146), (140, 28573)]