20740010

素因数分解:

$2^1\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{1609}}^1$

素因数の和:2905

約数の個数: 16

約数和(自身を含む): 37384200

約数和(自身を除く): 16644190

約数列:

[1, 2, 5, 10, 1289, 1609, 2578, 3218, 6445, 8045, 12890, 16090, 2074001, 4148002, 10370005, 20740010]

約数ペア:

[(1, 20740010), (2, 10370005), (5, 4148002), (10, 2074001), (1289, 16090), (1609, 12890), (2578, 8045), (3218, 6445)]