201780580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{142099}}^1$

素因数の和:142179

約数の個数: 24

約数和(自身を含む): 429710400

約数和(自身を除く): 227929820

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 142099, 284198, 568396, 710495, 1420990, 2841980, 10089029, 20178058, 40356116, 50445145, 100890290, 201780580]

約数ペア:

[(1, 201780580), (2, 100890290), (4, 50445145), (5, 40356116), (10, 20178058), (20, 10089029), (71, 2841980), (142, 1420990), (284, 710495), (355, 568396), (710, 284198), (1420, 142099)]