71712260

素因数分解:

$2^2\times 5^1\times {\mathrm{1783}}^1\times {\mathrm{2011}}^1$

素因数の和:3803

約数の個数: 24

約数和(自身を含む): 150755136

約数和(自身を除く): 79042876

約数列:

[1, 2, 4, 5, 10, 20, 1783, 2011, 3566, 4022, 7132, 8044, 8915, 10055, 17830, 20110, 35660, 40220, 3585613, 7171226, 14342452, 17928065, 35856130, 71712260]

約数ペア:

[(1, 71712260), (2, 35856130), (4, 17928065), (5, 14342452), (10, 7171226), (20, 3585613), (1783, 40220), (2011, 35660), (3566, 20110), (4022, 17830), (7132, 10055), (8044, 8915)]