2210420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1399}}^1$

素因数の和:1487

約数の個数: 24

約数和(自身を含む): 4704000

約数和(自身を除く): 2493580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1399, 1580, 2798, 5596, 6995, 13990, 27980, 110521, 221042, 442084, 552605, 1105210, 2210420]

約数ペア:

[(1, 2210420), (2, 1105210), (4, 552605), (5, 442084), (10, 221042), (20, 110521), (79, 27980), (158, 13990), (316, 6995), (395, 5596), (790, 2798), (1399, 1580)]