20225090

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{15439}}^1$

素因数の和:15577

約数の個数: 16

約数和(自身を含む): 36685440

約数和(自身を除く): 16460350

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 15439, 30878, 77195, 154390, 2022509, 4045018, 10112545, 20225090]

約数ペア:

[(1, 20225090), (2, 10112545), (5, 4045018), (10, 2022509), (131, 154390), (262, 77195), (655, 30878), (1310, 15439)]