8057780

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3989}}^1$

素因数の和:4099

約数の個数: 24

約数和(自身を含む): 17093160

約数和(自身を除く): 9035380

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 3989, 7978, 15956, 19945, 39890, 79780, 402889, 805778, 1611556, 2014445, 4028890, 8057780]

約数ペア:

[(1, 8057780), (2, 4028890), (4, 2014445), (5, 1611556), (10, 805778), (20, 402889), (101, 79780), (202, 39890), (404, 19945), (505, 15956), (1010, 7978), (2020, 3989)]