20019475

素因数分解:

$5^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{823}}^1$

素因数の和:979

約数の個数: 24

約数和(自身を含む): 28609280

約数和(自身を除く): 8589805

約数列:

[1, 5, 7, 25, 35, 139, 175, 695, 823, 973, 3475, 4115, 4865, 5761, 20575, 24325, 28805, 114397, 144025, 571985, 800779, 2859925, 4003895, 20019475]

約数ペア:

[(1, 20019475), (5, 4003895), (7, 2859925), (25, 800779), (35, 571985), (139, 144025), (175, 114397), (695, 28805), (823, 24325), (973, 20575), (3475, 5761), (4115, 4865)]