4178420

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{521}}^1$

素因数の和:931

約数の個数: 24

約数和(自身を含む): 8813448

約数和(自身を除く): 4635028

約数列:

[1, 2, 4, 5, 10, 20, 401, 521, 802, 1042, 1604, 2005, 2084, 2605, 4010, 5210, 8020, 10420, 208921, 417842, 835684, 1044605, 2089210, 4178420]

約数ペア:

[(1, 4178420), (2, 2089210), (4, 1044605), (5, 835684), (10, 417842), (20, 208921), (401, 10420), (521, 8020), (802, 5210), (1042, 4010), (1604, 2605), (2005, 2084)]