42407780

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{2621}}^1$

素因数の和:3439

約数の個数: 24

約数和(自身を含む): 89200440

約数和(自身を除く): 46792660

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 2621, 3236, 4045, 5242, 8090, 10484, 13105, 16180, 26210, 52420, 2120389, 4240778, 8481556, 10601945, 21203890, 42407780]

約数ペア:

[(1, 42407780), (2, 21203890), (4, 10601945), (5, 8481556), (10, 4240778), (20, 2120389), (809, 52420), (1618, 26210), (2621, 16180), (3236, 13105), (4045, 10484), (5242, 8090)]