20884580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{25469}}^1$

素因数の和:25519

約数の個数: 24

約数和(自身を含む): 44929080

約数和(自身を除く): 24044500

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 25469, 50938, 101876, 127345, 254690, 509380, 1044229, 2088458, 4176916, 5221145, 10442290, 20884580]

約数ペア:

[(1, 20884580), (2, 10442290), (4, 5221145), (5, 4176916), (10, 2088458), (20, 1044229), (41, 509380), (82, 254690), (164, 127345), (205, 101876), (410, 50938), (820, 25469)]