2112920

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{523}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 4810320

約数和(自身を除く): 2697400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 523, 808, 1010, 1046, 2020, 2092, 2615, 4040, 4184, 5230, 10460, 20920, 52823, 105646, 211292, 264115, 422584, 528230, 1056460, 2112920]

約数ペア:

[(1, 2112920), (2, 1056460), (4, 528230), (5, 422584), (8, 264115), (10, 211292), (20, 105646), (40, 52823), (101, 20920), (202, 10460), (404, 5230), (505, 4184), (523, 4040), (808, 2615), (1010, 2092), (1046, 2020)]