20172542480

素因数分解:

$2^4\times 5^1\times {\mathrm{252156781}}^1$

素因数の和:252156794

約数の個数: 20

約数和(自身を含む): 46901161452

約数和(自身を除く): 26728618972

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252156781, 504313562, 1008627124, 1260783905, 2017254248, 2521567810, 4034508496, 5043135620, 10086271240, 20172542480]

約数ペア:

[(1, 20172542480), (2, 10086271240), (4, 5043135620), (5, 4034508496), (8, 2521567810), (10, 2017254248), (16, 1260783905), (20, 1008627124), (40, 504313562), (80, 252156781)]