20009930

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28183}}^1$

素因数の和:28261

約数の個数: 16

約数和(自身を含む): 36526464

約数和(自身を除く): 16516534

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28183, 56366, 140915, 281830, 2000993, 4001986, 10004965, 20009930]

約数ペア:

[(1, 20009930), (2, 10004965), (5, 4001986), (10, 2000993), (71, 281830), (142, 140915), (355, 56366), (710, 28183)]