142173820

素因数分解:

$2^2\times 5^1\times {\mathrm{971}}^1\times {\mathrm{7321}}^1$

素因数の和:8301

約数の個数: 24

約数和(自身を含む): 298913328

約数和(自身を除く): 156739508

約数列:

[1, 2, 4, 5, 10, 20, 971, 1942, 3884, 4855, 7321, 9710, 14642, 19420, 29284, 36605, 73210, 146420, 7108691, 14217382, 28434764, 35543455, 71086910, 142173820]

約数ペア:

[(1, 142173820), (2, 71086910), (4, 35543455), (5, 28434764), (10, 14217382), (20, 7108691), (971, 146420), (1942, 73210), (3884, 36605), (4855, 29284), (7321, 19420), (9710, 14642)]