1961420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{971}}^1$

素因数の和:1081

約数の個数: 24

約数和(自身を含む): 4164048

約数和(自身を除く): 2202628

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 971, 1010, 1942, 2020, 3884, 4855, 9710, 19420, 98071, 196142, 392284, 490355, 980710, 1961420]

約数ペア:

[(1, 1961420), (2, 980710), (4, 490355), (5, 392284), (10, 196142), (20, 98071), (101, 19420), (202, 9710), (404, 4855), (505, 3884), (971, 2020), (1010, 1942)]