8249680

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1021}}^1$

素因数の和:1135

約数の個数: 40

約数和(自身を含む): 19389384

約数和(自身を除く): 11139704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1021, 1616, 2020, 2042, 4040, 4084, 5105, 8080, 8168, 10210, 16336, 20420, 40840, 81680, 103121, 206242, 412484, 515605, 824968, 1031210, 1649936, 2062420, 4124840, 8249680]

約数ペア:

[(1, 8249680), (2, 4124840), (4, 2062420), (5, 1649936), (8, 1031210), (10, 824968), (16, 515605), (20, 412484), (40, 206242), (80, 103121), (101, 81680), (202, 40840), (404, 20420), (505, 16336), (808, 10210), (1010, 8168), (1021, 8080), (1616, 5105), (2020, 4084), (2042, 4040)]