13012840

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3221}}^1$

素因数の和:3333

約数の個数: 32

約数和(自身を含む): 29577960

約数和(自身を除く): 16565120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 3221, 4040, 6442, 12884, 16105, 25768, 32210, 64420, 128840, 325321, 650642, 1301284, 1626605, 2602568, 3253210, 6506420, 13012840]

約数ペア:

[(1, 13012840), (2, 6506420), (4, 3253210), (5, 2602568), (8, 1626605), (10, 1301284), (20, 650642), (40, 325321), (101, 128840), (202, 64420), (404, 32210), (505, 25768), (808, 16105), (1010, 12884), (2020, 6442), (3221, 4040)]