8122420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4021}}^1$

素因数の和:4131

約数の個数: 24

約数和(自身を含む): 17230248

約数和(自身を除く): 9107828

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 4021, 8042, 16084, 20105, 40210, 80420, 406121, 812242, 1624484, 2030605, 4061210, 8122420]

約数ペア:

[(1, 8122420), (2, 4061210), (4, 2030605), (5, 1624484), (10, 812242), (20, 406121), (101, 80420), (202, 40210), (404, 20105), (505, 16084), (1010, 8042), (2020, 4021)]