2867780

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{643}}^1$

素因数の和:875

約数の個数: 24

約数和(自身を含む): 6058752

約数和(自身を除く): 3190972

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 643, 892, 1115, 1286, 2230, 2572, 3215, 4460, 6430, 12860, 143389, 286778, 573556, 716945, 1433890, 2867780]

約数ペア:

[(1, 2867780), (2, 1433890), (4, 716945), (5, 573556), (10, 286778), (20, 143389), (223, 12860), (446, 6430), (643, 4460), (892, 3215), (1115, 2572), (1286, 2230)]